The 'freshwater' frogfish stands as the solitary representative within the marine frog and anglerfish family to venture into environments ranging from brackish to pure freshwater conditions. This unique and captivating predator, seldom observed in freshwater aquariums, shares resemblances with its saltwater counterparts in terms of its leisurely locomotion. It employs intricate camouflage and a lure-like appendage to launch surprise attacks on smaller prey, such as crustaceans and tiny fish.

When introduced to an aquarium setting, it's advisable to house these frogfish in dedicated species tanks. This measure ensures they aren't outcompeted for sustenance by swifter aquatic residents. For optimal accommodation, providing ample rock work or other concealing elements is essential, given their exceptional ability to blend seamlessly into their surroundings.

Though predominantly acquired and kept in pure freshwater conditions, these frogfish thrive with the inclusion of a minimum amount of aquarium salt. Moreover, they showcase impressive adaptability to brackish water settings.