PLEASE tell me that's a typo...

I'll bet he meant 1.025.

You might want to bring that down to 1.023 or so so that it doesn't go above that when you have evaporation. :)

I have a auto top off with a 52 gal resevior...I have found that 1.025 is best for my acro's...I have had alot of success with my SG that high...

Yeah that was a typo I meant 1.025

Sounds like a nice set up :smile:
I also agree that a Q tank can be quite stressful as most are kept quite barren in case meds are needed. One advantage though is being able to run it dark (no stress to corals).
It sounds like you have acros but can you reduce your lighting period for a couple of days? Try running it dark when you are around and having the lights on for a short time when you are away. Or stick some cardboard on the the glass for a while (leaving some look through holes of course).
My experience with stressed fish is either they acclimate (sometimes slowly) or they give up the will to live and waste away quickly. The other thing to watch for is ich. It is an opportunistic parasite that can often show up in stressed fish.
A large blonde Naso is a beautiful fish - good luck again with him.

Nasos are so hardy and ready to romp. You have a skimmer running and good oxygenation I take it ? Feeding the fish nori, spirulina flake, mysis?

Yeah I have a huge beckett Skimmer
I feed nori, mysid,brine,krill, spirulina, formula 1, new life spectrum, ocean plankton, blood worms...And i think thats about all that i can think off

Well thanx all for the suggestions, but he passed away last night! May he rest in peace!

:sad: Sorry to hear buddy.

Sorry about your tang.
I have a couple of suggestions for you to ensure you are sucessful the next time.
1. Avoid large naso tangs. Even if it survived it is likely that it would refuse to eat. Choose one around 3 inches. All LFS know this. Why did they sell it to you?
2. Set up a simple quarantine tank now. It is a small investment and will avoid a repeat. In the very likely event that the new tang has ich you can treat it in the quarantine tank. You can keep the lights off to reduce stress in its new home.

Wayne Ryan

We do already have a QT tank, although when a fish of that size, ~9" comes around a 20g QT isn't sufficient, or humane.

I have never once heard to avoid large Naso tangs, and I myself did work in the industry for a short amount of time. Where did you hear this? How common is this knowledge, has anyone else heard of this?