Wartskin Anglers are ambush predators that do best alone, but can be housed with similar fish like scorpions. They should not be housed with other predators that are the same size or smaller than they are. Some anglers have been reported to consume streamlined fish like wrasses twice their length. They need to be provided with live foods like live shrimp and live saltwater fish several times weekly. Provide a minimum of a 20 gallon aquarium, but remember this fish is a messy eater and produces a lot of waste, so frequent water changes are needed. They won’t consume corals, but will eat any shrimp, crabs, or invertebrates that will fit in their mouth.