We had two BTAs. One died and one lived, although the one we still have isn't thriving. We have it under MH lights and feed it several times a week, and it's hosting a clown, but even still.
I never would have purchased one had I known better! Call it a novice mistake.
Anyway, keep a close eye on it, if it turns to a blob of jelly siphon it out so it doesn't polute your tank. We caught our dead one just in the nick of time and siphoned it out. That was one of the worst smells I ever encountered. My boyfriend nearly lost his lunch on the livingroom carpet!