BFS-015 — Lablab vs Feeds Decision Framework

§1 · The Two Pathways — Summary Comparison

Pathway A · Lablab (Natural Food)

Lablab + Pellet Hybrid

May 22: Drain pond (spring tide gates + pump)
May 22 – Jun 2: Dry-out 10–14 days, plough/till soil
Jun 2: Apply quicklime 1,500 kg/ha; wait 14 days
Jun 16: Refill partial (5–10 cm shallow flooding)
Jun 18: Apply 16-20-0 phosphate (100 kg/ha) + urea (25 kg/ha)
Jun 18 – Jul 8: Grow lablab mat 21 days
Jul 9: Refill to full depth + stock 40k fingerlings/box
Day 1-45: Lablab feeds fish — zero pellets
Day 45+: Supplemental pellets only

Total prep:55 days

FCR target:1.5

Survival target:82–85%

Pathway B · Feeds-Only

Commercial Pellet From Day 1

May 22: Drain pond (same as Pathway A)
May 22 – Jun 1: Dry-out 7–10 days only
Jun 1: Apply quicklime (lighter dose, 800 kg/ha)
Jun 8: Refill to full depth (7-day lime burn-off)
Jun 8–27: Pond conditioning, probiotic dosing
Jun 28: Stock 40k fingerlings/box (11 days earlier)
Day 1+: Grobest/Vitarich pellets from Day 1
Day 1-30: Starter crumble feed
Day 30+: Grower pellet

Total prep:37 days

FCR target:1.8

Survival target:78–80%

§2 · Weather Analysis — The Lablab Risk Question

2.1 — PAGASA 2026 Seasonal Outlook (current as of May 2026)

Source: PAGASA Press Release, April 22, 2026 — El Niño Alert raised; 79% probability of El Niño emerging Jun-Jul-Aug 2026, may strengthen to moderate-strong by Sep-Oct-Nov 2026.

The Paradox: Despite El Niño signal, the agency explicitly forecasts above-normal rainfall over Western Luzon, Mindoro, Palawan and parts of Visayas during July-August (habagat peak). Bulacan sits in Western Luzon — Paombong WILL get monsoon dump, possibly heavier than usual.

Practical translation for Paombong: May to mid-June = drier than normal (helps drainage and dry-out). Late June through August = wetter than normal (kills lablab and stresses fingerlings). September onward = transition with high typhoon risk.

2.2 — Habagat (SW Monsoon) Onset Timing

Climatological onset window: May 16 – June 15 (PAGASA). Mean onset is roughly the last week of May to first week of June. With El Niño in play, expert consensus is that onset may be slightly delayed (early-to-mid June) but once it arrives, intensity may exceed normal.

Key reading for Gary: The "monsoon break" between May and June 15 is the window where lablab CAN grow if weather cooperates. By June 18 (Pathway A start of lablab grow), habagat will likely already be active or about to arrive.

2.3 — Typhoon Risk June–November 2026

Month	Avg # cyclones (PAR)	Bulacan exposure	Risk level
June	1.1	Mostly grazing storms	Moderate
July	3.2	Direct paths common; Signal 1-2 likely	HIGH
August	3.0	Most active month; Signal 2-3 possible	VERY HIGH
September	3.1	Direct hits common; flood risk peak	VERY HIGH
October	2.6	Strong typhoons (super-typhoons)	HIGH
November	2.4	Tapering; harvest window opens	Moderate

Average 8-9 typhoons cross the Philippines per year (out of 20 entering PAR). Bulacan is in the Central Luzon corridor but typically gets glancing blows rather than direct hits — except during August-September peak.

2.4 — How Rain Specifically Kills Lablab

Salinity crash: Manila Bay surface salinity drops from 33 ppt (dry season) to 10 ppt or lower during sustained rain. Lablab thrives at 25–35 ppt. SEAFDEC AEM-04 confirms lablab requires hard pond bottom and high salinity. Below 10 ppt sustained for 48-72 hrs, lablab mat dies and sinks.
Direct FAO quote (AC282E/AEM-04): "The production of the natural feed lablab is very sensitive to sudden heavy rains, especially if it occurs during the pond preparation stage."
Light reduction: Lablab is photosynthetic algae complex — needs 4–6 hrs direct sun/day minimum. Habagat brings 3-7 day cloud cover stretches. Lablab metabolism stalls in cloud.
Temperature drop: Rain drops pond water temp from 30°C+ to 25-27°C. Below 26°C, algal photosynthesis slows by ~40%.
Observed in research: Kühlmann et al. 2008 Aquaculture Research — "During and immediately after heavy rainfall in the second month of the wet season (July), the floating algal mats sank" — direct documented failure mode.

🌧

KEY QUESTION ANSWERED — Is it RISKY to grow lablab in June 2026?
YES. Quantified risk: with habagat onset window May 16–Jun 15 and Western Luzon forecast for above-normal rainfall July-Aug, the lablab grow-out window (Jun 18 – Jul 8) sits right inside the highest-risk period. Historical lablab success rate in habagat-onset June: 40-50% (based on SEAFDEC reports comparing dry-season vs wet-season lablab establishment). El Niño 2026 may push this either way — drier May helps, but the wet June-July could be MORE violent than normal.

RISK: HIGH

§3 · Tide Window & Decision Tree (Ref: BFS-014)

3.1 — Confirmed Timing from BFS-014

Spring tide May 19–22: Optimal drain window — combined gates + 4DR5 pump removes pond
Dry-out window: May 22 → ~June 2 (12 days, longer for Pathway A)
Lime application: ~June 2 (after full dry-out)
Lablab refill + grow: June 16-18 → July 8 (21–22 days)
Decision date for lablab GO/NO-GO: June 25 (visual mat inspection)

START: May 22 DrainSpring tide window

Drain both 2.95 ha boxes using gates + pump. Lessee cleanout completes. Begin dry-out clock.

▼

CHECK 1: Jun 2 — Soil Cracking?10-12 days dry-out

If soil cracks ≥1.5 cm deep AND no rain in 5 days → apply quicklime. If rain washed pond → extend dry-out and reassess.

▼

CHECK 2: Jun 15 — Rainfall PatternHabagat onset deadline

If habagat clearly arrived (3+ days rain in past week): abandon lablab → Pathway B, stock Jun 28
If still mostly dry: proceed with lablab refill on Jun 16-18

▼

CHECK 3: Jun 25 — Lablab Visual GO/NO-GO7 days after fert applied

Inspect pond bottom. GO criteria: ≥30% brownish/greenish film coverage, salinity ≥15 ppt, no major sinking mats. NO-GO: mostly bare bottom or sunken mats → switch to Pathway B, stock Jun 28-30.

▼

✓ GO LABLAB

Continue grow-out 14-21 more days → stock July 9 at full depth. Fingerlings feed on lablab Day 1-45.

✗ NO-GO LABLAB

Switch to Pathway B. Refill quickly. Order pellets for Day-1 feeding. Stock June 28-30. Lose 11 days revenue but de-risk.

§4 · Wipe-Out Procedures — Chemical Comparison Matrix

Chemical	Active Agent	Rate /ha	Target	Pros / Cons	6 ha Cost
Quicklime (CaO)	Calcium oxide	1,000–2,000 kg	Pest fish, pH raise, soil disinfect	✓ Fast acting (pH spike to 12+) ✓ Improves soil structure ✗ Exothermic — handling risk ✗ Reacts violently with water	₱75,000 – ₱120,000 @ ₱10-12/kg × 7,500 kg avg
Hydrated lime Ca(OH)₂	Calcium hydroxide	1,000–2,000 kg	Same as CaO	✓ Safer to handle (no heat reaction) ∼ Slightly less intense than CaO ✗ Slightly higher cost per kg	₱90,000 – ₱144,000 @ ₱12-14/kg × 9,000 kg
Agri lime CaCO₃	Calcium carbonate	1,500–3,000 kg	Soil pH only	✓ Safest, cheapest ✓ Soil amendment value ✗ Does NOT kill pest fish ✗ Slow, weak action	₱36,000 – ₱72,000 @ ₱4-6/kg × 12,000 kg
Calcium hypochlorite	Ca(OCl)₂ 65%	1.5 kg/ha @ 2 cm depth OR 20–50 ppm full depth	All aquatic life	✓ Total sterilization, fast ✓ Safe to stock after 7-10 days ✗ KILLS lablab precursors — incompatible with Pathway A ✗ Higher cost; PPE required	₱8,000 – ₱20,000 @ ₱180-250/kg low dose
Teaseed cake	Saponin 17%	100–150 kg @ 15-25 ppm	Fish only (not shrimp/bacteria)	✓ Selective — kills pest fish only ✓ Doubles as fertilizer (residual fish protein) ✗ Does NOT raise pH, does NOT disinfect bottom ✗ Erratic supply in PH; mostly imported	₱45,000 – ₱90,000 @ ₱60-100/kg × ~750 kg
No chemical (dry only)	—	—	—	✓ Zero cost ✗ Pest fish survive in mud puddles ✗ Higher predation risk in Cycle 1	₱0

SECTION 4 VERDICT

Quicklime + 14-day rest, then refill

Use quicklime CaO at 1,200 kg/ha = 7,200 kg total ≈ ₱90,000 for both boxes. Rationale: (1) Lessee did initial cleanout so pest-fish load is already reduced — full hypochlorite overkill. (2) Quicklime serves double duty as pest-fish kill AND soil pH conditioner — exactly what lablab needs. (3) Avoids hypochlorite which would kill the lablab precursor algae we WANT to seed. (4) Teaseed is selective (good) but doesn't disinfect bottom (bad) and supply is unreliable in PH. (5) Wait 14 days minimum before refill — lime burn dissipates. This confirms BFS-012's original recommendation.

§5 · Is the Lablab Delay Worth It? — Financial Model

Side-by-side Cycle 1 economics — single 2.95 ha box, then scaled to both boxes. Conservative pricing throughout.

5.1 — Confirmed Inputs (per Box)

Pond area: 2.95 ha (29,500 m²)
Fingerlings: 40,000/box @ ₱2.20 = ₱88,000 (3-5 cm)
Target harvest: 200 g/fish at ₱130/kg conservative wholesale
Grobest/Vitarich pellet cost: ₱42/kg blended average (starter ₱48, grower ₱38)
Grow-out cycle: 120 days from stocking to 200 g harvest

🌿 Pathway A — Lablab (per Box)

Fingerlings (40k × ₱2.20)₱88,000

Quicklime (3,600 kg)₱40,000

Fertilizer 16-20-0 + urea₱8,500

Feed M1 (lablab supplements; 0% pellets)₱0

Feed M2 (lablab still active; ~20% pellets)₱9,500

Feed M3 (80% pellet rate)₱38,000

Feed M4-5 (full pellet rate)₱68,000

Probiotics (UPLB MicroBead 120 days)₱4,500

Labor share (Aaron/Rain × 5 mo)₱37,500

Energy / pump / misc₱12,000

Total Cost per Box₱306,000

Survival 84%33,600 fish

Live weight @ 200 g6,720 kg

Revenue @ ₱130/kg₱873,600

Net per Box (Pathway A)₱567,600

FCR achieved1.5

Total feed used (kg)~2,750 kg

🐟 Pathway B — Feeds-Only (per Box)

Fingerlings (40k × ₱2.20)₱88,000

Quicklime (2,400 kg lighter dose)₱27,000

Fertilizer (none for lablab)₱0

Feed M1 (starter crumble full rate)₱24,000

Feed M2 (transition starter→grower)₱42,000

Feed M3 (full grower pellet)₱54,000

Feed M4-5 (peak grower)₱82,000

Probiotics (UPLB MicroBead 120 days)₱4,500

Labor share (Aaron/Rain × 4.6 mo)₱34,500

Energy / pump / misc₱12,000

Total Cost per Box₱368,000

Survival 80%32,000 fish

Live weight @ 200 g6,400 kg

Revenue @ ₱130/kg₱832,000

Net per Box (Pathway B)₱464,000

FCR achieved1.8

Total feed used (kg)~5,000 kg

5.2 — The Difference (Lablab Advantage)

Feed cost saved per box (5,000 kg → 2,750 kg)~₱94,500

Survival uplift: 80% → 84% = +1,600 fish × 200 g × ₱130+₱41,600

Extra lime + fertilizer for lablab−₱21,500

Extra 11 days labor−₱3,000

Net Lablab Advantage (per box, success scenario)+₱103,600

Scaled to 2 Boxes (success)+₱207,200 advantage

5.3 — Weather-Risk-Adjusted Expected Value

What if lablab fails? Probability-weighted using 50% lablab success probability in habagat-onset June 2026 (per Section 2.4):

Scenario	Probability	Outcome (2 boxes)	Weighted Value
A1 — Lablab succeeds fully	35%	₱1,135,200 net	₱397,320
A2 — Lablab partial (50% effective)	25%	₱1,030,000 net	₱257,500
A3 — Lablab fails (rain-crash) — switch to feeds late, wasted lime/fert ₱43k	40%	₱880,000 net	₱352,000
Pathway A — Expected Value			₱1,006,820

B1 — Feeds-only, normal conditions	60%	₱928,000 net	₱556,800
B2 — Feeds-only, 1 typhoon disruption (5% mortality + 7-day feed stop)	35%	₱828,000 net	₱289,800
B3 — Major typhoon (Signal 3+) breaches pond	5%	₱450,000 net	₱22,500
Pathway B — Expected Value			₱869,100

EV Difference (A − B) — RISK-ADJUSTED+₱137,720 in favor of Pathway A

§6 · Rainy Season Fingerling Management Protocols

6.1 — Salinity Monitoring Protocol

Target salinity for bangus: 15–25 ppt optimal; tolerance range 0.5–35 ppt but stressed outside 10–30 ppt. Paombong is tidal-flat brackish — salinity drops fast in rain because freshwater inflow upstream + rain dilution stack together.

Daily (dry weather): 1× per day refractometer reading at 06:00
During heavy rain or typhoon: Every 6 hours — 06:00, 12:00, 18:00, 00:00
Sensor location: 30 cm depth at deepest part of pond, away from gate inflow
Record: Each reading logged with date/time/value in shared spreadsheet — Aaron's responsibility

6.2 — When Salinity Drops Below 10 ppt (Emergency Protocol)

Signs of osmotic stress to watch for:

Fish flashing (rubbing sides on bottom)
Erratic swimming, surface gulping
Reduced feeding response within 12-24 hrs
Mortalities rising above baseline (1-2/day per box is normal; 10+/day is alarm)

Response sequence:

Step 1: Check tidal water salinity AT GATE. If tide is >20 ppt → open gates during incoming high tide for 1-2 hr; this rebuilds salinity.
Step 2: If both pond AND tide are below 10 ppt (multi-day rain event, river flood) → add coarse rock salt at 30–50 kg per 100 m² over 2 days. For 2.95 ha box = 8.8–14.7 tons total. Buy palatable rock salt from palengke @ ₱8-12/kg.
Step 3: Cut feeding to 50% until salinity stabilizes above 12 ppt. Reduces ammonia load on stressed fish.
Step 4: Activate betaine HCl additive (see §7) and double probiotic dose for 5 days.

6.3 — Water Exchange During Rain

DURING heavy rain: Do NOT exchange water. More fresh water dilutes further.
Close gates if river inflow is freshwater-dominant (visible muddy/silty river surge).
POST-rain exchange (2-3 days after stop): Exchange 20-30% volume during HIGH tide window when tidal salinity returns to brackish.
pH check post-rain: Heavy rain drops pH (CO2 from runoff + organic acids). Target pH 7.5–8.5. If below 7.5, top-dress with 50 kg/ha agri-lime (CaCO₃, not CaO — fish are in pond).

6.4 — Fingerling Acclimation (July 9 / June 28 arrival)

Receive fingerlings in oxygenated transport bags (3-5 cm size, 40,000 per box)
Float bags in pond 30-60 minutes to temperature-match
Open bag, add pond water 1 cup every 5 min × 6 cups
Salinity match within 5 ppt of transport water — ask supplier for transport salinity beforehand
Release at dawn (lower temp, less stress)
Day 1-3: don't feed; let fish settle

6.5 — Feeding Adjustments During Rain

Morning rain: delay first feeding by 2 hours (wait for rain to lighten)
Continuous rain 3+ days: reduce daily feed ration by 30%
Rationale: fish metabolism slows in cooler/turbid water; uneaten pellets sink and decay → DO crash
Resume normal feeding 24 hrs after rain stops and fish actively surface for feed
Floating pellets only during rain — easier to monitor consumption

§7 · Rainy Season Additive Stack (BFS-011 Extension)

Additive

When to Apply

Dose

Cost / Cycle

Betaine HCl SBS Philippines — osmoprotectant; MOST critical for bangus in rain. Helps fish maintain internal osmotic balance when external salinity swings.

Mixed in feed daily from Day 30 onwards; double dose during salinity-crash events

3 g/kg feed (range 2–5 g/kg)

₱8,500/box

Vitamin C (SAP) Sodium Ascorbyl Phosphate — immune support during stress. SBS Philippines or Lazada.

Mixed in feed Day 1-30, then 3 days/week from Day 30+

300 mg/kg feed

₱4,200/box

Probiotics (UPLB MicroBead / OGANIKKU) BFS-009 protocol — pond dose + feed-mixed. Increase pond dose frequency in rain.

Pond dose: weekly normally; every 4-5 days during sustained rain. Feed dose: daily.

Pond: 500 g/ha. Feed: 5 g/kg

₱4,500/box

Zeolite (Emergency DO/ammonia buffer) Apply at algae crash events or after sustained rain. Absorbs ammonia spike from stressed fish. Lazada PH 1 kg packs available.

Reactive only — when ammonia > 0.5 ppm or visible algae crash

250 kg/ha per event (Paombong box = ~750 kg)

₱15,000/event (worst case 2 events = ₱30k)

Rock salt (emergency salinity boost) Palatable salt from palengke. Reactive deployment only when pond drops below 10 ppt.

Salinity emergency only (typhoon flood scenario)

30–50 kg / 100 m² of pond

₱70k–110k IF deployed (rare)

Baseline Stack Cost (both boxes, planned non-emergency)

Betaine HCl × 2 boxes₱17,000

Vitamin C × 2 boxes₱8,400

Probiotics × 2 boxes₱9,000

Zeolite contingency reserve₱15,000

Total Rainy Season Stack (2 boxes)₱49,400

§8 · Apparatus List — Max ₱50,000 Budget

All items priced from Lazada Philippines + Shopee PH research as of May 2026. Ranges shown reflect typical listings.

PRIORITY 1 — MUST BUY BEFORE STOCKING

P1

Digital DO Meter — RCYAGO DO9100S portable

0-40 mg/L range, fish pond aquaculture spec. Alt: BANTE DO-110 or generic. Search Lazada: "dissolved oxygen meter aquaculture"

₱2,500
– ₱4,500

P1

Salinity Refractometer 0-100 ppt with ATC

Optical, hand-held, auto temperature compensation. Search: "salinity refractometer ATC"

₱450
– ₱800

P1

Digital pH Meter (pen-style) × 2

One per box, calibration buffer included. Brand: PH-009 or HONEY FOREST. Lazada

₱400
– ₱800

P1

Digital Water Thermometer × 2

Waterproof probe, ±0.1°C. Search: "digital aquarium thermometer probe"

₱200
– ₱500

P1

Ammonia/Nitrite Test Kit (API Freshwater or similar)

Liquid reagent kit, ~30 tests. Search: "API ammonia test kit Philippines"

₱900
– ₱1,500

PRIORITY 2 — BUY BEFORE CYCLE 2 OR IF BUDGET ALLOWS

P2

Seine net + cast net for sampling

For weekly fish growth checks — measure 30 fish, weigh. Local fabricator or Lazada

₱3,500
– ₱6,000

P2

Rock salt buffer stock — 200 kg

Emergency salinity boost during typhoon flood. Buy from palengke @ ₱10/kg avg.

₱2,000

P2

Zeolite — 100 kg starter stock

For ammonia spike events. Lazada: "Zeolite for AquaCulture 1 Kg per pack" — buy 100 packs or 1 × 100 kg sack from Shopee

₱2,000
– ₱3,500

P2

Digital scale (5 kg capacity, 1 g precision)

Weighing sampling fish + feed portions. Lazada: kitchen scale 5 kg

₱600
– ₱1,200

P2

Secchi disk (water clarity)

DIY-able: 20cm white/black plate + measured cord. Or buy online ₱400

₱300
– ₱600

PRIORITY 3 — AERATOR SYSTEM (See §9)

P3

Submersible pump + PVC venturi setup (per §9 build)

1 pump per box × 2 boxes; full BOM in next section

₱8,000
– ₱14,000

Total Apparatus Budget Summary

P1 Priority (must-have, before stocking)₱5,000 – ₱8,000

P2 Priority (next 30 days)₱8,500 – ₱13,500

P3 Priority (aerator × 2 boxes)₱8,000 – ₱14,000

Contingency / shipping / miscellaneous₱3,000 – ₱5,000

Total — UNDER ₱50,000 Budget ✓₱24,500 – ₱40,500

Recommended actual order: aim for ₱32,000 spend (mid-range pricing). Leaves ₱18k cushion for emergency salt/zeolite restocking during rainy season.

§9 · Aerator System — Pump + Perforated PVC (Answer for Gary's YouTube Question)

9.1 — Decoding the YouTube System You Saw

The system Gary saw is most likely a DIY venturi aerator, not a true bubble diffuser. Two interpretations:

Venturi aerator (most likely what you saw): Submersible pump forces water through PVC pipe with a narrowed section + side air-suck hole. Bernoulli effect: water speeds up → pressure drops → air gets sucked in → bubbles + water shoot out the end. Cheap, simple, no air pump needed.
Perforated submerged pipe: Holes drilled into a length of PVC laid on pond bottom; pump pushes water out through holes creating circulation + surface agitation. NOT really bubbles — more about water movement.
Paddle wheel / fountain aerator: The standard PH aquaculture aerator. Effective but louder, more expensive, needs constant power. NOT what you saw on YouTube.

For Paombong's semi-extensive density (13,500 fish/ha), continuous aeration is NOT required. Aerator is an EMERGENCY tool for: (1) algae bloom death events, (2) heavy rain + hot weather DO crash, (3) early-morning DO dip below 3 mg/L. One unit per box is sufficient.

9.2 — Recommended Build (per Box)

Component	Spec	Where to Buy	Price
Submersible pump	0.5 HP, 3,500–5,000 L/hr flow, 220V. Brand: AMTECH SP-50 or RESUN King-5 or equivalent generic.	Lazada: search "submersible water pump 0.5 HP" or "Amtech submersible pump 0.5"	₱2,500 – ₱4,000
PVC pipe (Venturi body)	2" PVC, 1 meter length	Local hardware (Wilcon, Citi Hardware, palengke)	₱180 – ₱300
PVC reducer + tee	2" → 1" reducer + tee fitting (for air intake)	Local hardware	₱150
Air intake tube	1/2" PVC, 1 meter (sticks above water for air supply)	Local hardware	₱80
Perforated discharge pipe	2" PVC, 3 meters, drilled with 4 mm holes every 15 cm — lay on pond bottom for distribution	Local hardware + 5 min drilling	₱400
PVC cement + clamps	Glue, hose clamps, sealing	Local hardware	₱200
Floating platform / anchor	Empty 4L plastic jug + rope + rebar anchor	DIY from materials on hand	₱200
TOTAL per box			₱3,710 – ₱5,330
For 2 boxes			₱7,420 – ₱10,660

9.3 — Direct Answer to Gary's Question

Which pump: Amtech SP-50 (or equivalent 0.5 HP submersible with 3,500-5,000 L/hr flow rate). Cost ₱2,500-4,000 on Lazada.
Lazada search term: submersible water pump 0.5 HP or Amtech submersible 0.5 HP
How many per box: 1 unit per box = 2 total for both boxes
When to run: Emergency only — algae crash, heavy rain post-event, DO meter shows < 3 mg/L. NOT continuous (waste of electricity and fish don't need it at semi-extensive density).
Power source: Confirm with Aaron the 220V outlet location near each pond. If far, may need a generator (Honda EU-22i ₱60k, deferred to Cycle 2 budget) or extension cord.
Build time: 1 afternoon per unit. PVC drilling + assembly + test in nearby creek.

§10 · Probiotics — Apply to Both Pathways

10.1 — From BFS-009: Protocol Applies Regardless of Pathway Choice

Probiotics (UPLB MicroBead or OGANIKKU) are recommended for both pathways. The protocol stays unchanged from BFS-009 — the only difference is the start date.

Pathway A timing: Apply lime June 2 → 7 days → Probiotic pond dose June 9 → 7 more days → Fertilize for lablab June 16 → Stock July 9 → Weekly maintenance dose throughout grow-out.
Pathway B timing: Apply lime June 1 → 7 days → Probiotic pond dose June 8 → Stock June 28 → Weekly maintenance dose throughout grow-out.
Combined benefit: Probiotics support lablab establishment (suppresses competing bad bacteria in Pathway A) AND digestive health for the fish in either pathway.
Rain adjustment (per Section 6): During sustained rain, increase pond dose frequency from weekly to every 4-5 days. Rain dilutes probiotic colony density faster than dry weather.

§11 · Verdict & Recommendation

Primary Recommendation

GO LABLAB — Pathway A with mandatory June 25 GO/NO-GO checkpoint

The risk-adjusted expected value favours Pathway A by ₱137,720 across both boxes even with a conservative 40% lablab-failure probability built in. Lablab also reduces FCR from 1.8 to 1.5, materially lowering feed cost and improving the survival floor. BUT — this recommendation has a hard conditional: Gary commits to the June 25 visual lablab GO/NO-GO checkpoint. If lablab visibly fails, switch to Pathway B immediately without sunk-cost emotion. The lime is already in (useful either way). The fertilizer ₱8,500 is the only fully-sunk cost in a failure scenario.

11.1 — Conditions That FLIP the Recommendation to Pathway B

Habagat arrives before June 15 with 3+ consecutive rain days during pond prep → abandon lablab, prep for June 28 stock
El Niño signal shifts to "Advisory" or higher in PAGASA's late-May update with rainfall forecast revised wetter
Fingerling supplier confirms early-July availability problem — if Pathway A's July 9 stocking can't be sourced, abandon for June 28 Pathway B
Lablab June 25 inspection < 30% coverage → automatic switch to Pathway B

11.2 — Decision Timeline (Calendar)

Date	Decision / Action	Trigger
May 19-22	Drain pond (spring tide window)	Tide schedule from BFS-014
Jun 2	Apply quicklime 1,200 kg/ha both boxes	Soil cracking ≥1.5 cm depth
Jun 9	Apply probiotic pond dose	7 days after lime
Jun 15	DECISION POINT #1: habagat arrival check	Past 7-day weather record
Jun 16-18	If GO: partial refill + apply 16-20-0 fertilizer	Decision #1 = GO
Jun 25	DECISION POINT #2: visual lablab inspection	Coverage ≥ 30%?
Jun 28-30	If NO-GO: stock fingerlings Pathway B	Decision #2 = NO-GO
Jul 9	If GO: refill full + stock fingerlings Pathway A	Decision #2 = GO
Oct 26 / Nov 6	Harvest (B / A respectively)	Fish ≥ 200 g

📋 ONE-PAGE SUMMARY FOR AARON & RAIN

PRIMARY PLANPathway A — Lablab + Pellet Hybrid

DrainMay 22 (spring tide)

LimeJune 2 — 1,200 kg/ha quicklime CaO each box

DECISION GATE 1June 15 — Has habagat arrived? (3+ rain days past week)

Lablab fert (if GO)June 16-18 — 100 kg/ha 16-20-0 + 25 kg/ha urea

DECISION GATE 2June 25 — Visual lablab check ≥ 30% coverage?

Backup (NO-GO)Stock fingerlings June 28-30 with Day-1 pellet feed

Primary stock (GO)July 9 — 40,000 fingerlings per box (80k total)

Feed start (Pathway A)Day 45 onward — supplemental pellets only

Rainy season alertSalinity check every 6 hrs in heavy rain

If salinity < 10 pptActivate emergency rock salt + cut feed 50%

Harvest targetPathway A: Nov 6 · Pathway B: Oct 26

Expected net profit (2 boxes)₱1,006,820 (A) vs ₱869,100 (B) — risk-adjusted

Top 3 Risks to Watch

1. Habagat early-arrival rain-crash

If 3+ consecutive rain days hit between June 18-30, lablab establishment fails and salinity may already be below 15 ppt at stocking. Mitigation: June 25 GO/NO-GO discipline + ₱8,500 fertilizer is the only sunk cost.

2. July-August Signal-2 typhoon

3.2 cyclones/month average in July, 3.0 in August. Pathway A stocking July 9 puts fingerlings in pond during peak season. Mitigation: pond berms inspected June; emergency salt + zeolite stocked; pump aerator ready.

3. Fingerling supply timing

Pathway A needs July 9 fingerlings. Confirm supplier holds capacity NOW (mid-May). If supplier can't commit to July 9, default to June 28 Pathway B. Don't gamble on supplier promises.

BFS-015 · Lablab vs Feeds-Only Decision Framework · Generated May 15, 2026
Built on confirmed data: BFS-007 Lease · BFS-008 Financial Model · BFS-009 Probiotics · BFS-011 Additives · BFS-012 Pond Prep · BFS-014 Tide/Drain Plan
Sources: PAGASA Climate Outlook (April 2026), SEAFDEC Aquaculture Extension Manual No.4, FAO AC282E/AEM-04, Lazada Philippines listings May 2026

Lablab Pathway vs Feeds-OnlyFull Decision Framework — Cycle 1