I heard that it is Ok to keep frogfish or anglers in reef aquariums. As I am thinking of purchasing one and adding it to my tank, I was wondering if anyone had any insights into whether this is ok or not. ThanX!!
They'll perch on corals like a hawkfish, which might bother them. They'll eat anything twice their size or smaller. I saw one the size of a penny eat a full grown FW betta, and then "accidentally" eat a $125 Helfrichi's firefish at the LFS. I'd keep them in a species tank. They don't need much space and you'll be much more likely to see them than in a reef tank.
Correct, anything up to twice their body size would be an easy lunch, i.e. shrimp, fish etc. So you'd be severely limted on the other animals you'd be able to keep and keep in mind they grow too. So I would second the species tank idea, set up a 30 gallon with a DSB, 20 pounds of LR and a Remora skimmer and he'll have a happy home.