He looks good to me. My Fahaka is about 6" and the 1st couple of days after I brought him home, he did'nt eat anything but live snails but now he eats frozen bloodworms and krill like there's no end to his stomach. Frozen bloodworms was the only food that some DP's I had yrs ago ate. Might try some of them?
Always thought they were a neat fish, so much personality in their eyes. Also, sounds like an awesome job, living the dream you are. Lots of fish to look after without having to deal with customers.
i do have a fahaka puffer too but mine is 8inches..lovessssss
clam and mkt prawn!!haha
hapi puffering bro..all the best
if u do have any qns feel free to drop me a pm