Food Grade Reservoir — Light-Proof Hydroponic Tank for DIY Custom Systems
Best for: Growers building their own hydroponic setups who need a safe, reliable nutrient tank without the premium markup
Our thoughts
This is proper kit for anyone building a custom hydroponic system. Food-grade plastic, light-proof, and built to handle what you throw at it. One we see a lot of in Brummie Bubbler setups, and for good reason — it does exactly what it should without the faff.
The Food Grade Reservoir is a straightforward, heavy-duty storage tank designed for hydroponic growers who want to build their own systems from the ground up. Made from tough, food-grade plastic with a light-proof black exterior, it gives you a safe foundation for mixing and circulating nutrient solutions without worrying about chemical leaching or algae blooms. Whether you're running a Brummie Bubbler, Dutch bucket setup, deep water culture, or drip system, this reservoir handles the job properly.
How it compares
This sits in the budget-to-mid tier of standalone hydroponic reservoirs.
- Food-grade material — prevents any nasties leeching into your nutrient solution, unlike generic plastic buckets
- Light-proof design — black construction stops algae growth without needing extra wrapping or workarounds
- UK-stocked — no waiting around for delivery when you need to get growing
- Straightforward, no-frills tank — you're paying for the vessel, not built-in features you don't need
In simple terms: you get the safety and reliability of purpose-built hydro kit at a price that leaves room in the budget for pumps, nutrients, and growing media.
Usage guidance
The Food Grade Reservoir works across multiple hydroponic setups:
Brummie Bubbler systems
This is the classic choice for bubble bucket builds. Houses your water pump, air stone, and nutrient solution. The light-proof construction keeps algae at bay while you're running air through the system.
Dutch bucket setups
Use this as your central reservoir feeding multiple growing buckets. A circulation pump distributes mixed nutrients to each plant, with excess draining back in.
Deep water culture (DWC)
Sits beneath your growing net pot or bucket. Submerged air stone provides oxygen, keeping roots happy. Simple and effective for single or multiple plants.
Drip and ebb-and-flow systems
Central supply tank with pump circulation to flood trays or individual drip lines. The tank size keeps nutrient levels stable across multiple plants.
Maintenance essentials
Test pH and EC (electrical conductivity) regularly — your nutrient solution can drift, and plants suffer when it does. Keep your aeration running (air pump and stone) to prevent oxygen depletion. Aim for nutrient solution temperatures between 18–24°C; the light-proof walls help stabilise this naturally.
Technical specifications
- Capacity: 60 litres (approximately 16 gallons) or 80 litres (approximately 21 gallons)
- Material: Food-grade plastic
- Exterior: Black, light-proof construction
- Design: Thick-walled, rigid tank (prevents warping under weight)
- Compatibility: Works with all standard hydroponic system types — Dutch bucket, DWC, drip, NFT, ebb-and-flow
- Safety: FDA food-grade approved — no chemical leaching into nutrient solution
Sizing guidance
Choosing between 60L and 80L depends on your plant count and system type:
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60 litres: Suits 10–20 small plants, or 6–10 medium-sized plants
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80 litres: Suits 14–28 small plants, or 8–14 medium-sized plants
Pro tip: Undersized reservoirs cause pH swings, nutrient imbalances, and oxygen depletion. If you're on the fence between sizes, go larger. Extra nutrient solution volume = more stable growing conditions.
Who this is for
- DIY hydroponic system builders who want to control every component
- Intermediate and experienced growers moving beyond all-in-one kits
- Brummie Bubbler enthusiasts (proven track record in this community)
- Growers running multiple plants where reservoir size directly affects stability
- Anyone who wants food-grade safety without paying premium brand prices
- Builders of Dutch bucket, DWC, or drip systems needing a reliable central tank
Our take
This is a proper piece of kit for anyone building a custom hydroponic system. Food-grade, light-proof, and built to last — it does exactly what a hydroponic reservoir should do without any unnecessary complexity or cost.
If you're putting together your own setup and want a tank you can trust, this is worth picking up while stock lasts. No guessing games, no worrying about what's leeching into your nutrient solution. Just a solid, reliable reservoir that gets the job done.
