Ghost shrimp will be the staple for any anglers except the larger ones like the painted and giant, which will eventually eat mollies as their staple and some ghost shrimp. Please read through some of my other threads as you see I dispel the myth of feeding predators what people call fresh water fare. Ghost shrimp are actually a variety of shrimp that live in fresh, brackish and salt water. It is easier to transport and keep them in fresh water. Set up a little fresh water tank or container at home with a sponge filter to keep ghosties, so you can feed them a healthy diet, and gut load prior to offering them as food. I feed my ghosties Omega One micro pellets, you can actually see them in their guts, it like the preds get the pellets too. I keep ghosties and guppies with a pinch of salt, like 1.005 and my molly tank I keep at 1.013. Mollies live and breed in as high as 1.017 in the wild. I have kept many preds for many years on a main diet of ghosties, guppies, and mollies. Feeding anything from salt water will spread disease, it's only a matter of time. The only exception would be salt water shrimp that are kept in a system with no fish, and lfs really don't do that anymore, and fish diseases will hitch hike on inverts. Frogfish in the best conditions really don't live that long, and I have kept them over 3 years, which seems for the most part, the longest you can expect. I currently feed 9 predators ghosties, guppies, and mollies as the main part of their diets.