Hairy Frogfish
Antennarius striatus
Also known as: striated frogfish, Striated frogfish, Striated Frogfish, Striped Anglerfish
A master of disguise that fishes for its own meals using a built-in lure.
About
The hairy frogfish (Antennarius striatus) is one of those animals that genuinely stops people in their tracks the first time they see one. Covered in irregular skin filaments that resemble algae or encrusting growth, it barely looks like a fish at all. More like a clump of reef rubble that somehow started moving. Found across tropical and subtropical waters in the Indo-Pacific and Atlantic, it typically parks itself on sandy bottoms, rubble zones, or among sponges and waits, sometimes for hours or days, without moving. The first dorsal spine has evolved into a modified lure called an esca, which it waves above its mouth to attract prey. When something comes close enough, the strike happens in milliseconds. One of the fastest feeding responses of any vertebrate. In the aquarium, that predatory efficiency means you need to be very deliberate about tankmates, because anything that fits in that enormous mouth will eventually end up there. Hairy frogfish can also be slow to accept frozen food, so patience and a willingness to train them off live feeders is part of the deal. They're a genuinely rewarding species for a keeper who appreciates unusual animals and is prepared for their particular needs.
Frequently asked questions
- What water parameters does the Hairy Frogfish need?
- The Hairy Frogfish does best with a temperature of 72–82°F, a pH of 8–8.4.
- Is the Hairy Frogfish aggressive?
- The Hairy Frogfish is aggressive and is best kept alone or with robust tankmates that can hold their own.
- What does the Hairy Frogfish eat?
- The Hairy Frogfish is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- Is the Hairy Frogfish reef safe?
- The Hairy Frogfish is not considered reliably reef safe and may harm corals or invertebrates.