Hey guys, my angelfish, who is about 5 yrs old appears to be constipated. he had a weird bloating around his anus area for a couple of days. now he has what appears to be a large terd or gallstone type thing coming out. the other day i saw it and i thought to myself "oh he must have been constipated, good hes getting it out now" but its still there and he hasn't made any progress in passing this. what should i do?