The Assorted Anglers can range in color from tan to grey to brown. Their body can also change color to blend with the surrounding environment over time. They require large amounts of live rock in a 70 gallon or larger aquarium.
When first introduced into the aquarium, live saltwater feeder shrimp should be used to entice this fish to eat. An angler may eat any small inhabitant of the tank (crustacean or fish) that is lured into its mouth with the use of an esca (modified first dorsal spine) that looks like a small, tasty fish. It will accept most meaty meals including feeder fish and shrimp.
Minimum Tank Size: 70 gallons
Care Level: Moderate
Tank Conditions: 72-78�F; sg 1.020-1.025; pH 8.1-8.4; dKH 8-12
Max. Size In Aquarium: Up to 5"
Color Form: Brown, Gray, Tan, Yellow
Temperament: Semi-aggressive
Reef Compatible: Yes
Diet: Carnivore
Origin: Indo-Pacific
Family: Antennariidae
Thats a frog fish right?
That is, quite frankly, shocking information.
Calling it assorted frogfish means they have no idea how to identify it. 70 gallons is a huge amount, even the giant frogfish (which gets to 12" in the wild) can be kept in a 30 gallon or so due to the lack of movement on the fish's part. Why on earth would a 5" fish need a 70 gallon tank when it doesn't rely on the live rock to harbour its food (like a dragonet)?
As to saying the fish gets to 5", how do they know? They don't even know the species! While there are a few that get to that sort of size, they have pictured
A. hispidus (possibly
A. striatus but less likely) which gets closer to 8". There are a very large number of frogfish in the family Antennariidae ranging from barely getting to 2" up to 15" giants.
They can occasionally be aggressive to their own kind, though your biggest problem is not that small tank mates may be eaten, it is the fact that most tank mates that are too large to be eaten (roughly twice the size of the frogfish) are likely to pick at the camouflage of the frog and thus disturb, and possibly kill the frogfish. Frogfish will all eat prey the same size as themselves, and many will eat things up to twice their length. On top of this, the more voracious feeders (such as
A. striatus) will catch and try to eat things far too large to eat, just in case. then, after killing the prey by trying to ingest it, they will drop it and wander off (or alternatively manage to swallow it whereupon it rots in the fish's gut before digestion can occur and thus kills the frog).
Also, the frogfish lure shape (apparently like a fish) depends on the species. The lure can be anything from a small point, to a bio-luminescentm pom pom, to a worm shape to fish to shrimp.
While in theory they can be kept in a reef tank, they will consume ornamental shrimps, tank mates and do not do well in tanks with a high flow (so SPS tanks are pretty much a no no).
As to colour, I have one individual fish which can be anything from yellow to orange to green to black. Pretty much every colour except blue can be found in frogfish including reds, pinks and greens.
If you seriously are interested in keeping frogfish, get a look at Reef Fishes Volume 1 by Scott Michael. The book has a whole chapter on frogs including identification and how to care for them and is certainly better than the rubbish information on the website that pengy666 has found (which appears to be from
liveaquaria). If you read on their other frogs (such as the sargassum frogfish
Histrio histrio) that site has the completely wrong information stating that
H. histrio has been known to swallow prey nearly its own size.
H. histrio is perhaps the most insatiable of creatures that has been found with fish over twice their own size in the gut, and another was found with 13 conspecifics (fish of the same species) in its stomach.