sharing my months of experience and research in frog fish, still very green
it will eat anything equal or smaller size than itself
but better to feed 50% of its size to reduce the risk of choking
normally it does not do well in a comm tank due to the reason above and
it is very unlikely to catch its prey, esp in predator tank
feeding FW shrimp is better than FW fish as
FW fish contain fats etc that harm SW fish if fed long term as a staple diet
feeding once or twice a week is more than sufficient
if you see the frog fish extending its lure, that means it has settled down
it does better in small and shallow tank as it prey on sand bed
make sure your tank is well covered as it is a great jumper when spooked
it doesnt move about and a lot find it boring
but i find it interesting, esp when it is preying
some find it weird & ugly, but i simply love its unique character & pattern
please dont flame me, all these are just my personal opinion
i just love my frog fish