I tried one before, it was a warty frogfish. I never got it to eat frozen and I tried everything, I even cut shrimp into a fish shape and painted eyes on it, apparently it's the fish's eyes that will catch the frogfish's attention.
All I got it to eat were zebra danios and the occasional ghost shrimp along with some other live fish but it only lived for about 2 months. I also remember reading that they are difficult to keep because there is little food they will eat that has the required nutrients. For the most part whatever they eat doesn't have as much energy as the amount of energy it took the frogfish to eat it. They expand up to 8 times their size in a split second to create a huge suction to catch their prey.
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