forget the ro unit..... also you can buy adapters to hook them to a faucet but the ph swing is not worth the risk motoros will adapt to anywater for the most part just use tap water and add prime makes life really easy ... also get freshwater stingrays by Dr richard ross... its about 8 bucks and worth it... you need alot more research in stingrays that book will help you alot... nobody here and im sure you dont want to see any rays you buy die...
