Promotional graphic showing Adams Gas refillable CO₂ bottles for planted aquariums, highlighting high‑purity CO₂, rent‑free ownership, UK‑wide refill network, and cost savings compared to branded disposable cylinders.

CO2 For Aquarium Plant Growth 420g

Price range: £12.50 through £36.56 + VAT (£15.00 inc VAT)

Give your planted aquarium the CO₂ support it needs with our 420g refillable cylinder, designed specifically for stable, efficient plant growth. This bottle delivers high‑purity CO₂ ideal for aquascaping setups, offering a reliable and cost‑effective alternative to disposable cartridges. Safe, refillable, and rent‑free, it’s the long‑term solution for hobbyists who want consistent results without the ongoing expense.

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Gas Type & Quality

  • Gas Type: Carbon Dioxide (CO₂)

  • Purity / Grade: Food Grade (E290)

Cylinder Details

  • Cylinder Size: 425 g CO₂

  • Valve: BS341 no.8

  • Water Capacity (Equivalent): Approx. 0.6 L internal volume

  • Material: Lightweight steel/aluminium composite

Refillable
Rent free
Nationwide

Key Features

  • High‑purity CO₂ for strong, healthy plant growth in aquascaped tanks.
  • Refillable 420g cylinder for long‑term, low‑cost operation.
  • Rent‑free ownership with no contracts or deposits.
  • Safe and compliant, tested to UK and EU pressure‑vessel standards.
  • Compatible with standard aquarium CO₂ regulators and injection systems.
  • Reliable supply through our UK‑wide refill network.

Uses & Applications

  • Planted aquariums & aquascaping — supports lush growth, colour, and stability.
  • High‑tech CO₂‑injected tanks requiring consistent gas delivery.
  • Aquarium shops & service providers needing dependable CO₂ stock.
  • Hobbyists upgrading from disposable cartridges to a refillable system.