Water changes are needed more for reef tanks than live
rock fish only tanks. That's not to say that someone could
not do a reef tank without water change, but,,,,,

There's a big difference with the need for water changes
with fish, verses corals, especially if you have soft and
stonies together.

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/7/2006 5:44 PM:
No coral. Only live rock and fish. I only dose kalk with top off water.

Do you ask because coral will bring my water out of spec? Why do you ask?