Histrio histrio, known as the Sargassum Frogfish, is a small but remarkable marine fish renowned for its exceptional camouflage and ambush hunting strategy. This species is a captivating addition to mature marine aquariums, especially for hobbyists with experience in keeping predatory fish.
Care Level: Due to its specialised diet and behaviour, Histrio histrio is best suited for advanced aquarists. It requires a well-established tank with stable water parameters and ample live rock or artificial structures to mimic its natural habitat.
Temperament and Compatibility: This frogfish is a solitary predator and can be aggressive towards smaller tankmates, which it may view as prey. It is recommended to keep Histrio histrio either singly or with larger, robust species that are not easily mistaken for food. Avoid housing with small, peaceful fish or invertebrates.
Diet: Carnivorous by nature, Histrio histrio feeds primarily on live or frozen meaty foods such as small fish, crustaceans, and shrimp. Regular feeding with appropriately sized prey items is essential to maintain health.
Minimum Tank Size: A minimum of 75 litres (approximately 20 gallons) is recommended to provide sufficient space for hunting behaviour and to reduce stress.
Lighting and Water Flow: Moderate lighting is suitable, replicating shaded environments. Water flow should be gentle to moderate, ensuring the frogfish can remain stationary without excessive current stress.
Placement: Provide plenty of hiding spots using live rock or artificial decor to simulate the natural Sargassum weed habitat. Placement near the bottom or mid-level of the tank is ideal.
Origin: Not Provided.
Maximum Size: Typically grows up to 10 cm (4 inches).


