Looking real good.
Just one point, might want to look at angling that heater. Cats have a bad habit of sitting on top of them, and burning themselves.
He might be hunting the tank mates, especially if they are of the swallowable size..
Black worms, assuming the presence has caused him to dismiss pellets? Figured he’d be big enough to not bother at this pointBloodworms? Or black worms?
If you have live worms and shrimp in the tank, it surely is hunting them at night. Shrimp swim away, so the tig must be jumping out of the water accidentally while chasing them.