R/o Unit For Bw

[Matty P]

I have an R/O Unit for my saltwater marine tank, could I use pure R/O water for a Brackish Set-up??

 

[nmonks]

If you want, yes. But there's no real advantage. Salt reduces the toxicity of nitrate significantly, so that fish that sensitive to nitrate in freshwater (e.g., mollies) are indifferent to it in brackish water. Obviously the lower the nitrates, the better. But if your tap water supply has nitrates below 50 mg/l, I'd always recommend people go with tap water rather than RO water because [a] its easier and because it's cheaper, they're more likely to do big, regular water changes.

Cheers, Neale

I have an R/O Unit for my saltwater marine tank, could I use pure R/O water for a Brackish Set-up??

 

[Matty P]

OK cheers.

Talking of water changes, how often should I do a water change for an F8 puffer and how much???

 

[nmonks]

Same as any other fish, 25-50% a week.

Cheers, Neale

Talking of water changes, how often should I do a water change for an F8 puffer and how much???

 

[Matty P]

Same as any other fish, 25-50% a week.

Cheers, Neale

OK, thanks for the replies m8