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The fins on my Yellow and Blue Tangs are disappearing/deformed (see image). They were OK when purchased and over the past 2 or 3 months I have seen this problem. There is no indication of a problem other than the fin condition, they are peppy, eating well and I have seen no discoloration at the...

First off, just what does a refugium do and what are the advantages of having one? If you have a sump do you still need one and can a refugium be incorporated into your sump?

I'm redoing my 80G Saltwater Reef tank and I have added the live rock. I am zapping the Aiptasia as I see them but I won't get rid of all of them of course. What would be good to have in the tank (if anything) that will eat what I don't see? Thanks

My RO water out of the RO system is 1-2 TDS but if i take it from the tank outlet it is around 20 TDS. I recently cleaned the tank and I am guessing the small about of tap water left in there is the reason for the high TDS. What is the best course of action to get it down (or is 20 TDS OK)...

I am redoing my 80G saltwater tank. Everything is out and I am cleaning it. What is the best way to clean and kill any algae and algae spores left in the tank or will just cleaning very well and letting it dry do that? Is Clorox bleach the best way to clean the tank (since I can use one of...