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Tank is an 80G and I have a Blue Tang (which is also suffering from the same problem), A clown and a 6 line wrasse, that is it.

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?

he does some work in the tank I know they are little bulldozers, knocking S over, moving stuff around.

After i posted i went to F&S and was reading that they are Ok for reef. Here's another question. Their recommendation for a algae cleaning crew is as follows for a 75G tank. Scarlet Hermit Crabs 15 Turbo Snails 30 Dwarf Red Tip Hermit 50 That sure seems like a lot of bugs running...

Will they eat any of the good stuff in the tank or are they reef safe?

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

Basically what is the ideal depth for the substrate in my 80G reef tank and is crushed coral, sand or a combination the best? I have the substrate from my old setup (crushed coral mostly) but is it a good idea to reuse it considering the organic material left in it from before or can it be...

Thanks, good info.

Thanks all, looks like the general feeling is that my RO is good to go. Can we change subjects or should i do another thread? I have some questions about substrate, crushed coral or sand, how deep?

Thanks for the advice. It did create some new questions. I am not familiar with the term "Makeup water", is this the same as "top off water"? Also do I really need TDS at zero? I know the lower the better and zero if desirable but from 146 in my case for tap to 1 or 2 sounds very excitable...

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...