: You can purchase RO/DI units and replacement filters from major hobbyist sites like Bulk Reef Supply . Buying vs. Making Your Own
: Many specialized aquarium shops like New Dawn Aquaculture sell RO/DI water by the gallon. You typically bring your own 5-gallon jugs to refill.
Deciding whether to buy water or a machine depends on your tank size and frequency of water changes:
Buying RO/DI (Reverse Osmosis/Deionization) water is a common practice for aquarium hobbyists, particularly those with saltwater reef tanks, to ensure the highest possible water purity. While you can purchase this water from local fish stores (LFS) or some specialized water retailers, many long-term hobbyists find that "buying" a home filtration system is more cost-effective and convenient in the long run. Where to Buy RO/DI Water
: Some kiosks or water-focused stores provide high-purity water. However, verify the TDS (Total Dissolved Solids) of the water. Some commercial "purified" water stations add minerals back for taste, which can be harmful to sensitive corals or shrimp.
If you prefer not to own a system, you can source pre-made RO/DI water from several types of locations:
: You can purchase RO/DI units and replacement filters from major hobbyist sites like Bulk Reef Supply . Buying vs. Making Your Own
: Many specialized aquarium shops like New Dawn Aquaculture sell RO/DI water by the gallon. You typically bring your own 5-gallon jugs to refill.
Deciding whether to buy water or a machine depends on your tank size and frequency of water changes:
Buying RO/DI (Reverse Osmosis/Deionization) water is a common practice for aquarium hobbyists, particularly those with saltwater reef tanks, to ensure the highest possible water purity. While you can purchase this water from local fish stores (LFS) or some specialized water retailers, many long-term hobbyists find that "buying" a home filtration system is more cost-effective and convenient in the long run. Where to Buy RO/DI Water
: Some kiosks or water-focused stores provide high-purity water. However, verify the TDS (Total Dissolved Solids) of the water. Some commercial "purified" water stations add minerals back for taste, which can be harmful to sensitive corals or shrimp.
If you prefer not to own a system, you can source pre-made RO/DI water from several types of locations: