Obviously RO/DI water is the preferred choice... but I know of lots of people using tap water with very successful reefs. I use it myself. I think if you use tap water, use a good conditioner like PRIME .. I notice good results as well as others.
If you can get RO/DI .. then I would go that route. If tap water is all that's available... then tap water it is. That's just my opinion though...
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20g BB Mixed Reef // Coralife 150w HQI // AquaC Nano // Koralia 1 & Seio 820 // Jager 200w // AC50
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