Aptus Feeding Schedule

About Aptus

Aptus is a Dutch plant-technology company, and its products are unusually concentrated — the dose rates are measured in millilitres per hundred litres, not millilitres per litre. That is the point: the line is built around highly available, low-volume inputs that steer plant behaviour rather than simply supplying bulk NPK.

Regulator, Startbooster, Fasilitor, Massboost and All-In-One are the products you will see. They are designed to sit alongside a base feed, and because the concentrations are so high the up-front bottle price is misleading — a small bottle covers a long run.

The feed chart

Aptus PREMIUM Organo-Mineral Program

Aptus PREMIUM Organo-Mineral Program feed chart

Aptus SUPER SOIL Organic Program

Aptus SUPER SOIL Organic Program feed chart

Aptus CLEAN Mineral Program

Aptus CLEAN Mineral Program feed chart

Feed chart tables

Aptus runs three separate programs — PREMIUM Organo-Mineral (a liquid schedule for run-to-waste/recirculating growers), CLEAN Mineral (the same liquid shape with its own product list) and SUPER SOIL Organic (a per-pot, granular/powder program with its own optional liquid top-ups) — each its own chart image above. Reproduced below exactly as Aptus prints them, dose per litre of water unless the row says otherwise. A dash means that program’s own chart lists nothing for that product at that week.

PREMIUM Organo-Mineral Program

Aptus PREMIUM Organo-Mineral Program — mix per litre of water unless noted
Feed VEG FLOWER FLUSH Final Flower Week
EARLY LATE MATURATION
Week Week 1 Week 2-3-4> Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8
Fill tank with fresh water* Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water
REGULATOR 0,15 mL/L 0,15 mL/L 0,15-0,3 mL/L** 0,15-0,3 mL/L** 0,15-0,3 mL/L** 0,15 mL/L 0,15 mL/L 0,15 mL/L 0,15 mL/L 0,15 mL/L —
CAMG-BOOST 0,25 mL/L 0,25 mL/L 0,5 mL/L 0,5 mL/L 0,5 mL/L 0,5 mL/L 0,5 mL/L 0,5 mL/L 0,5 mL/L 0,25 mL/L —
P-BOOST — — 0,1 mL/L 0,2 mL/L 0,2 mL/L 0,1 mL/L — — — — —
K-BOOST — — — — 0,2 mL/L 0,3 mL/L 0,3 mL/L 0,4 mL/L 0,5 mL/L 0,7 mL/L —
ALL-IN-ONE LIQUID 0,8-1 mL/L 1-1,2 mL/L 1,2-1,5 mL/L 1,2-1,5 mL/L 1,2-1,5 mL/L 1,5-1,8 mL/L 1,5-1,8 mL/L 1,5-1,8 mL/L 1,2-1,5 mL/L 0,8-1 mL/L —
STARTBOOSTER 0,25 mL/L 0,25 mL/L 0,5 mL/L — — — — — — — —
TOPBOOSTER — — — 0,2 mL/L 0,3 mL/L 0,3 mL/L 0,3 mL/L 0,4 mL/L 0,5 mL/L — —
pH-check pH 5.8 pH 5.8 pH 5.9 pH 6.0 pH 6.0 pH 6.1 pH 6.1 pH 6.2 pH 6.2 pH 6.2 pH 6.2
PREMIUM — Optional tank additions — mix per litre of water
Feed VEG FLOWER
Week 1-2-3> Week 1-2-3> Final week
RO WATER CONDITIONER 0,25 mL/L 0,25 mL/L —
ENZYM+ 0,25 mL/L 0,25 mL/L 0,5 mL/L

* When using RO Water, add RO WATER CONDITIONER first to EC 0.3.

** To limit stretch use 0.3mL/L REGULATOR in week 1-3 of flower.

CLEAN Mineral Program

Aptus CLEAN Mineral Program — mix per litre of water unless noted
Feed VEG FLOWER FLUSH Final Flower Week
EARLY LATE MATURATION
Week Week 1 Week 2-3-4> Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8
Fill tank with fresh water* Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water Refresh water
RO WATER CONDITIONER 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L 0,8 mL/L —
REGULATOR 0,15 mL/L 0,15 mL/L 0,15-0,3 mL/L** 0,15-0,3 mL/L** 0,15-0,3 mL/L** 0,15 mL/L 0,15 mL/L 0,15 mL/L 0,15 mL/L 0,15 mL/L 0,15 mL/L
ALL-IN-ONE LIQUID 1,2 mL/L 1,5 mL/L 1,5 mL/L 1,8 mL/L 2 mL/L 2 mL/L 2 mL/L 2 mL/L 1,8 mL/L 1,5 mL/L —
BREAKOUT POWDER*** — — — — 0,5 gr/L — 1 gr/L — 1,5 gr/L — —
K-BOOST — — — — — — — 0,5 mL/L 0,5 mL/L 0,5 mL/L —
pH-check pH 5.8 pH 5.8 pH 5.9 pH 6.0 pH 6.0 pH 6.1 pH 6.1 pH 6.2 pH 6.2 pH 6.2 pH 6.2
CLEAN — Optional tank — mix per litre of water
Feed VEG FLOWER
Week 1-2-3> Week 1-2-3>
SYSTEM-CLEAN 0,25 mL/L 0,25 mL/L

Aptus’ own description: “Our CLEAN feed program is a mineral based, ultra-clean, cost effective, pH stable, set-and-forget style of program that can be used with all growing systems, substrate types and cultivation methods. This feed program will last 14 days in a reservoir or DWC system and will not cause any salt of biofilm buildup in irrigation/fertigation systems.” (as printed, including the chart’s own wording)

* In case of starting with RO Water, add RO WATER CONDITIONER to EC 0.3 before adding the dose from the schedule.

** To limit stretch use 0.3mL/L REGULATOR in week 1-3 of flower.

*** Dosing depending on cultivar & cultivation method.

SUPER SOIL Organic Program

Mix ALL-IN-ONE PELLET, SUBSTRATE BUFFER POWDER and MICROMIX SOIL homogeneously in the ratios below before adding to the pot. MYCOR MIX is applied once, 1 gram per plant, directly to the planting hole. MICROMIX DRIP is optional, added to irrigation water periodically during cultivation at 1 gram per litre every 21 days. Aptus states this program can be used as a stand-alone schedule or as a replacement for the base nutrient in the Premium schedules above.

Aptus SUPER SOIL — mix into the pot at planting, by pot size — per pot unless noted
Feed Pot 5-10 Liter Pot 10-25 Liter Pot 25-50 Liter
ALL-IN-ONE PELLET 25-75 gr 50-100 gr 100-150 gr
SUBSTRATE BUFFER POWDER 1 gr/L of soil 1 gr/L of soil 1 gr/L of soil
MICROMIX SOIL 0,5-1 gr/L of soil 0,5-1 gr/L of soil 0,5-1 gr/L of soil
SUPER SOIL — Optional tank — mix per litre of water
Feed VEG FLOWER
Week 1-2-3> Week 1 Week 2-3-4>
REGULATOR 0,15 mL/L 0,15-0,3 mL/L* 0,15-0,3 mL/L*
STARTBOOSTER 0,25 mL/L 0,5 mL/L —
TOPBOOSTER — 0,2 mL/L 0,3 mL/L
SUPER SOIL — Optional foliar spray — mix per litre of water
Feed VEG FLOWER
Week 1-2-3> Week 1 Week 2-3-4>
REGULATOR 2 mL/L 2-4 mL/L* 2-4 mL/L*
STARTBOOSTER 2 mL/L 4 mL/L —
TOPBOOSTER — — 2 mL/L

* To limit stretch use 0.3mL/L REGULATOR (tank) or 4mL/L REGULATOR (foliar) in week 1-3 of flower.

Figures as published by Aptus (charts kweekschema-2025_prem-organo, kweekschema-2025_clean-min, kweekschema-2025_soil-organ). Feeding charts are recommendations only. Adjustments may be needed based on environmental conditions, your grow structure, and any additional products you run. Actual results vary.

What we stock

The Aptus additive range. Because dosing is so different from most brands, ask us before you mix the first tank — it is easy to overdo.

Shop Aptus

Everything on this schedule, stocked at Milford and Webster.

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