What else do you have in the tank? The sand will blow around until it is coated with bacteria. A single uncured live rock will solve the problem in less than a week.
Originally Posted by ERock412 http:///forum/post/2889857
i just have a HOB carbon filter and heater. my fish are in a bare bottom tank w/ my skimmer and PH's, and LR. Should i put a PH in there too?
Not necessary right away, but I would put some of that lr in the new tank as Bang was indicating.