Bro sungod666, i noe how u feel right not. Don be disheartened. Blue ring angel is a common fish wher u can get it from time to time. Its a beautiful fish. My wifey favourite. But due to ur tank size, its better to let it go. E fish will suffer in a long run. U can try to get a dwaft angel instead. Coral beauty, rusty, ebli, flame angel r all nice fish too. Do giv it a 2nd though ya. But if u insist of keeping it, then u hav to stop adding anymore livestock. All e bros here r trying to help u. So be positive ya.
Cheers bro...
(ps; u r welcum to dropby my place if u need any advise on reefing)