Description
Stax – Nutrient Support Blend for Vigorous Growth and Stem Development
Stax (formerly known as Stackswell) is a high-performance nutrient additive formulated to support robust plant growth in hydroponic systems. Its unique blend of humic acids, calcium, magnesium, and plant-available sugars helps improve nutrient uptake, stem strength, and overall plant vitality from early veg through flowering.
- Dilution / Dose
- Dose start water to 0.2–0.3 EC and hold it there through veg, transition and flower.
- When To Use
- From early veg right through to harvest; refresh the reservoir at least once a week.
- Substrate Fit
- DWC, RDWC and NFT hydro systems, coco coir, and soil.
- Grower Notes
- Layer it on top of any VEG+BLOOM base — the humic acids, calcium and magnesium build thicker stems and better nutrient uptake all cycle long.
Key Benefits
- Promotes thicker stems and stronger structural growth
- Improves nutrient absorption and transport efficiency
- Supports photosynthesis and energy production
- Enhances substrate health and microbial activity
- Compatible with hydroponic, coco, and soil-based systems
Core Ingredients & Functions
| Component | Function | Benefit |
|---|---|---|
| Calcium | Structural nutrient | Supports cell wall formation, division, and enzyme activation |
| Magnesium | Photosynthetic cofactor | Essential for chlorophyll production and ATP synthesis |
| Humic Acids | Organic substrate enhancer | Improves water retention, nutrient availability, and microbial activity |
| Plant Sugars | Energy source | Feeds beneficial microbes and supports metabolic processes |
Application Guidelines
Use Stax throughout the growth cycle:
- Early Veg: Adjust start water to 0.2 – 0.3 EC
- Veg / Early Flower: Maintain start water at 0.2 – 0.3 EC
- Flower: Continue with 0.2 – 0.3 EC
Change your reservoir at least once per week to maintain optimal nutrient balance.
System Compatibility
- Hydroponic systems (DWC, RDWC, NFT)
- Coco coir substrates
- Soil-based environments
Stax is trusted by growers for its ability to deliver consistent results in stem development, nutrient uptake, and overall plant health. Whether you're growing leafy greens, fruiting crops, or flowering plants, Stax helps unlock your plants’ full potential.
How much Veg+Bloom does your grow actually need?
Tell us your medium, pot size and plant count. The Feed Chart Calculator builds your week‑by‑week chart with target EC, works out every bottle for the whole run, and puts them straight in your basket. You can price Veg+Bloom against twelve other brands while you are there.




