Bingo.
OP: Double check the hot spots, ambients, cool side, humidity, and room temps. Let us know what they are reading at and we can assist a little better.
That killerbee male you got seems to be in full breeding mode still. Don't worry about him too much, most adult males will get a bit skinny during breeding season, especially if they are in the same room as females and can smell them.
I would be more worried about your 300g balls right now.