RO/DI Water – 0 TDS
£1.00
High-purity RO/DI water, produced using reverse osmosis and deionisation to achieve 0 TDS.
Ideal for marine and reef aquariums where clean, contaminant-free water is essential.
Perfect for:
- Aquarium top-ups to replace evaporated water
- Mixing your own saltwater
- Water changes when combined with marine salt
- Reef and marine aquarium maintenance
Using RO/DI water helps minimise unwanted substances such as phosphates, silicates, nitrates and other impurities commonly found in untreated tap water.
TDS: 0 ppm
Suitable for: Marine & reef aquariums
Important: RO/DI water contains no salt or minerals. For water changes in a marine aquarium, marine salt must be mixed into the water before use