R/O water

[freshwatertrev]

Hi there, just wondering if it is necessary to use R/O water for water change, if so how much aqua safe do i need to use if any??

 

[adeebm]

Unless you have very specific needs, RO water isn't necessary at all. Infact, using just RO water will kill your fish. Just use your tap water, and add dechlorinator per the bottle's instructions.

--Adeeb

 

[bruinsbro1997]

Unless your water is SUPER hard and you're keeping fish like discus it's not very necessary.