I noticed in another thread that you mention using treated tap water. How long has your tank been running & how long have the corals been in there? Even though whatever you use to treat the tap water will bind the chlorine, there could be traces of other elements building up in your system that are making the coral go funky. See if your water provider (city?) posts water tests online and check it out. Should be a good list of what's in your tap water & at what percentage. Even a trace of copper or some other metal not harmful to us, will eventually build up in your system & can affect invertebrates & corals in particular.
My advice is to start using pure water regardless.
Last edited by mike31154; 11-07-2011 at 04:57 AM.
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