I got a Mated Pair in my 75g. They are the only 2 fish in there for now, I've had them for 2 weeks now and they've dug like a trench in the sand. Anyways ALL they do 90% of the time is stay there ughhhhh lol they're cool I just wish they would exploew they tank more. They don't seem to be sick or anything just a little lazy I guess lol.