Gro-Tank Replacement Tank – NFT Nutrient Reservoir
Gro-Tank Replacement Tank – NFT Nutrient Reservoir
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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
- 14-day returns
- Price match promise
- Free Wembley store pickup
- Advice from the team: 020 3488 0419
Description
A like-for-like nutrient tank to keep your Gro-Tank running
The Nutriculture Gro-Tank Replacement Tank is the original moulded reservoir that sits beneath the top tray of a Gro-Tank NFT system, made in the exact size for the GT100 (100 litres) and the GT901 (80 litres). In an NFT system the tank holds the whole nutrient solution: the pump lifts it onto the tray, it runs as a thin film over the bare roots, and whatever the roots do not take up flows back down the tray into the tank. A cracked, warped or stained tank means leaks on the grow-room floor, a solution that will not hold its level and a home for algae - all of which show up as poor nutrient uptake and stressed roots. A new tank from the same mould restores the fit with the tray and top plate, so the film flows exactly as the system was designed.
Key Benefits
- Genuine Nutriculture Gro-Tank part, moulded to fit its own top tray
- 100-litre (GT100) or 80-litre (GT901) capacity - the same volume as the original
- Rigid black plastic that holds its shape under a full load of solution
- Also works as a second tank - mix the next batch of solution while the first is in use, then swap
- Keeps the whole system running without replacing the tray, pump or top plate
How to Use
- Switch off and unplug the pump, lift off the top plate and tray, and drain the old tank.
- Rinse the new tank with clean water and set it level where the old one stood.
- Refit the pump and delivery tube, then seat the tray and top plate on the new tank.
- Refill with fresh water and nutrients, set EC and a pH of 5.8 to 6.5, and restart the pump.
Technical Specifications
- Fits: Nutriculture Gro-Tank GT100 or GT901 (choose the model)
- Capacity: GT100 - 100 litres; GT901 - 80 litres
- Footprint: GT100 - 120 x 106cm; GT901 - 211 x 53cm (the maker's system sizes; the tank is the base of the system)
- Material: rigid moulded black plastic
- Supplied as: tank only - top tray, Correx top plate, pump and delivery tube not included
Frequently Asked Questions
Does the tank come with a pump or tray?
No, this is the tank on its own. Your existing top tray, Correx top plate, pump and delivery tube refit onto it.
Will a GT100 tank fit my GT901, or another Gro-Tank?
No. Each Gro-Tank model has its own tank shape to match its tray: the GT100 is a near-square 100-litre tank and the GT901 a long, narrow 80-litre tank. Choose the model printed on your system.
Why keep a second tank?
A second tank lets you mix and pH a fresh batch of solution while the first is still in use, so a full change takes minutes and the roots are never left dry.
Works Well With

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 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.


