Terra Aquatica Humic Acid Root Zone Conditioner
Terra Aquatica Humic Acid Root Zone Conditioner
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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Conditions the root zone so the feed you give actually stays available
Terra Aquatica Humic is a concentrated humic acid extract that works on the growing medium rather than inside the plant. Humic molecules are larger than fulvic and stay in the root zone, where they hold mineral ions on exchange sites, improve structure and support the microbial life that keeps a medium healthy over a long cycle.
Key Benefits
- Holds nutrients where roots can reach them - reduces the amount lost to run-off between feeds
- Improves structure in soil and coco - better air-to-water balance means roots that branch instead of drowning
- Supports beneficial microbes - gives bacteria and fungi the carbon they need to establish
- Buffers a heavy feed - smooths the spike that follows a strong reservoir change
- Complements fulvic - humic conditions the medium, fulvic carries minerals into the plant
Weak roots and a medium that dries out unevenly
A tired medium sheds nutrients to run-off, holds water in patches and produces weak roots that never fill the pot. Humic acid rebuilds the exchange capacity that holds a feed in place, which is why it earns its keep most in coco and in soil going through a second run.
How to Use
- Soil: 3 ml per litre at first roots, then 4 ml per litre through first true leaves, growing and preflowering; not used in flowering
- Hydroponics and coco: Terra Aquatica's hydro and coco charts list Fulvic in place of Humic - use Fulvic in those media
- Reused medium: worth running from the very first feed of a second cycle, when exchange capacity is at its lowest
- With beneficials: pairs well with a bacterial inoculant added at the same watering
- Note: dose to the medium, not to the plant - humic works below the surface
Technical Specifications
- Active: Humic acid extract
- Role: Root zone and medium conditioner
- Typical dose: 3 ml per litre at first roots, then 4 ml per litre to preflowering
- Best in: Coco and soil, especially a reused medium
- Use with: Terra Aquatica Fulvic and any bacterial inoculant
- Media: Soil and organic programmes
| Stage | Per 1 L | Per 10 L |
|---|---|---|
| 1st roots | 3 ml | 30 ml |
| 1st true leaves | 4 ml | 40 ml |
| Growing | 4 ml | 40 ml |
| Preflowering | 4 ml | 40 ml |

FREE Express Delivery on orders over £60. We aim to post same day for next-working-day arrival — order by 3pm Mon–Fri. Delivery is 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.