This podcast was much needed! It is especially valuable to new owners trying to figure it all out. Bill has a massive amount of knowledge on the subject and this is a great way for it to travel.
I had the same issue with one of my panthers around that age, the advice I got was... It's the teenage years. Make sure you have a good gradation of light and temp,places for him to hide etc. check out the dragonstrand custom set ups for me they have been ideal. Otherwise hang in there, my guy...