Dont get disheartened, we all know that when people enter the hobby for the first time they put their trust with the shop that gives them the advice. I am sorry to say that i have seenthis many times, a shop will seel a totally unsuitable fish knowing full well that problem will occur downthe line. Thisis not your fault of course, then you come on here and ask some basic question and get fired at fromall angles for keeping unsuitable fish

) None of us are having a dig at you but many of us are passionate about the welfare of these animals (like yourself i am sure from what i have read) so if you see a highly charged reply thendont take it personally.
What must be doe now though is to try and reduce the damamge that is liekly to happen in the future. Do you have any pictures of the tank so we can see the size of it and the size of the fish? Is it possible to find a 30 or 40 gallon tank that you can upgrade to for a about 6 months? this will help considerably. As mentioned, you will need a large puddle of water for tangs, the others you could get away with a smaller capacity. If you could exchange the tang for a Cherub angel or something it would ease the stress considerably. Lastly, remember to think long in advance. If you want a larger tank then remember that with more water comes more live rock, this is probably the killer blowon the cpacity of most peoples budgets. For a 100 gallon tank you will need some serious cash to kit it out with live rock

Make sure you have these funds on place before you go and get a tank with fish then find you cannot afford the filtration for them.
I hope a solution can be found soon to this problem, ifi lived anywhere near you i would lend you a 30 gallon myself whilst you were upgrading
