do i need r/o water when cycling

[GreenSpottedPuffer]

Originally Posted by bill_e

yeah i plan on sticking with fowlr for awhile .probably wont switch over to reef untill "i" think i no every thing to no about fowlr..

Then you may want to go with RO/DI. If you use tapwater for long enough, phosphates are going to build up inside the LR...again, not a big deal for a FOWLR but you won't want that if you are switching the tank to a reef. Just something to consider.