Have been attempting to keep copperband butterfly fish and every time I get a fish they die the next day.....even had 1 eating black worms but next morning started breathing heavily and got worse throughout the day ....just before it died later on and I noticed it bleeding by its tail.....the last pumps the fish in a bag when purchasing,normally I don't have an issue with this but could copperbands be so sensitive this could be damaging them internally?

