R.O. systems are also available then....but i will say that giving them water straight from the faucet is ok...as far as hydro goes, well i'm lost there
Treez81 Reviewed by Treez81 on . WATER QUESTIONS? Hello, there is a theory that you should let tap water sit out for 24-48 hrs before using it, my question is if you let it sit out covered or sealed (I.E. old plastic milk containers with the cap on) is it doing any good, or does it need to sit uncovered? newbie thanks!;) Rating: 5