FERMAKOR BARREL MIX – BASE IN USE
(Testing on the Fantasy Feast girl we pulled out of another diary
https://growdiaries.com/diaries/274722-grow-journal-by-yan402 )
(FERMAKOR BASE SYSTEM KOH VERSION diary
https://growdiaries.com/diaries/278391-grow-journal-by-yan402)
(Urea & Micros on the way — first week running without them)
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💧 30 L Barrel – Current Working Mix
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Step 1 – Calcium Nitrate (Part A)
7 L warm water (~35–40 °C) → added 45 g Calcinit, stirred until fully clear.
That’s the calcium + nitrogen backbone for the feed.
Step 2 – FERMAKOR PK Base (Part B)
15 L water in the main barrel → added 30 ml FERMAKOR PK Concentrate, mixed well.
This forms the main P + K part of the formula.
Step 3 – Combine Solutions
Slowly poured the Calcinit mix into the barrel while stirring — no reaction, still crystal clear.
That confirms the mix is stable and precipitation-free.
🌿 Step 4 – FPJ / FFJ Batch
Added 30 ml homemade FPJ (fish + veg batch) ≈ 1 ml/L.
Color shifted to a light-amber tone — looks alive and active.
🍋 Step 5 – Citric Acid Balance
Added 1 tsp citric acid after everything was blended to fine-tune pH and help chelate micros later on.
📦 Step 6 – Top Up & Check
Filled to the 30 L mark with plain water → pH tested with drops, showing yellow-green — roughly 5.8 – 6.0 range.
Nice clean look, stable smell, no residue.
💧 Current Base Ingredients (Active Mix)
Warm Water ≈ 22 L total
Calcinit 45 g → N + Ca foundation
FERMAKOR PK Base 30 ml → P + K support
Citric Acid 1 tsp → Chelation + pH balance
FPJ / Fish Emulsion 30 ml → Organic enzyme booster
Result: clean amber mix, mild and balanced.
I’ll let this version run for a week before adding anything.
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Observations and changes
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27.10.25 VW27 noticed some min burnt tips so I decreased Calcium Nitrate 45 to → 40g, decided to add two more elements micros and Epsom salts just to make sure they got everything, Fetrilon Combi 1 (Micros): 0.5 g, Epsom salts: 8 g
28.10.25 VW27 she seems devoid of any deficiencies, seems ready for the flip to 12/12
02.11.25 VW27 girl is looking good so I decided to stop making daily videos and do a standard once a week update.
09.11.25 aVW28 7 days since flip,stretch in full swing, first pistils showing, leaf color deep and healthy. Slight tip burn early week → gone after pH stabilized.
Feed stayed clear, no residue, roots clean and sweet-smelling, did what I hope is a last cleanup and pruning🎥
10.11.25 VW29 added Phosphoric acid pH down to the schedule for flowering stage.
14.11.25 FW1 FERMAKOR PK Micros 40 → 50 ml
23.11.25 FW2 got some burnt tips, observe and act accordingly in case it worsens, diluted by 25% for this week.
05.12.25 FW3 about 2 weeks ago Calcium Nitrate 35 g → 25 g, FERMAKOR PK Micros 50 ml → 60 ml
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🌿Day to day tasks & actions 🌿
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30.11.25 FW2 – Fed 5l of #1 → 2l runoff
01.12.25 FW3 – Fed 5l of #1 → 2l runoff
02.12.25 FW3 – Fed 5l of #1 → 2l runoff
03.12.25 FW3 – Fed 5l of #1 → 2l runoff
04.12.25 FW3 – Fed 5l of #1 → 2l runoff
05.12.25 FW3 – Fed 5l of #1 → 2l runoff
06.12.25 FW3 – Fed 5l of #1 → 2l runoff
07.12.25 FW3 – Fed 5l of #1 → 2l runoff
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🌱 Nutrients in 30 L #1 Veg – FERMAKOR
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Calcium Nitrate (Calcinit / Nitcal): 45 → 40 g → 35 g → 25 g
= 1.50 g/L → 1.33 g/L → 1.17 g/L → 0.83 g/L
= 207 ppm N / 253 ppm Ca → 184 / 225 → 161 / 197 → 115 / 141
PK Concentrate (FERMAKOR Base): 30 → 40 ml → 50 ml → 60 ml
= 1.00 → 1.33 ml/L → 1.67 ml/L → 2.00 ml/L
→ balanced 1:1 P:K + light micros (from extract)
Home-made FFJ/FPJ (Fish + Veg): 30 ml
= 1.00 ml/L
Epsom Salt (MgSO₄·7H₂O): 8 g
= 0.27 g/L → ~26 ppm Mg + ~35 ppm S
Fetrilon Combi 1 (Micros): 0.5 g
= 0.017 g/L
→ Fe 0.7 ppm · Mn 0.7 ppm · Zn 0.3 ppm · Cu 0.3 ppm · B 0.1 ppm · Mo 0.02 ppm
Phosphoric Acid (pH down) + Citric Acid (chelation): as needed
→ First set pH with phosphoric acid, then add a little citric only if you want extra chelation
Target pH: 5.8 – 6.0 (drop test yellow-green)
📦 TOTAL:
Liquids: 60 → 70 → 80 → 90 ml per 30 L
= 2.00 → 2.33 → 2.67 → 3.00 ml/L
Solids (CaNO₃ + Epsom + Fetrilon):
53.5 → 48.5 → 43.5 → 33.5 g per 30 L
= 1.78 → 1.62 → 1.45 → 1.12 g/L
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YouTube Link: https://youtube.com/-m8h?si=A7x4Zlr2kj-_ga31