Sea Creatures 101: The Lionfish


© Sharon Rorem
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They don't have teeth-but can still bite-sort of! Lionfish were actually named for their appearance, mainly the orange-brown stripes that run horizontally across the long spines on their bodies. Lionfish, or as they are scientifically known, Pterois Volitans, are part of the Scorpaenidae family which includes stinging fish such as the Stonefish. There are two genera of Lionfish-the full sized Lions in the Pterois genera and the Dwarf Lionfish in the Dendrochirus genera. There are at least 300 known types of Lionfish-common ones are: Shortfin, Black or Sphex, and Antennata. Shortfin Lionfish are in the Dendrochirus genera, and are commonly kept in home aquariums because of their smaller size. There have been many reports of successful breeding of Shortfins. Antenna Lionfish have a red coloring and narrow spines. Many Lionfish, other than Shortfin, will grow to about 14 inches. The Black or Sphex Lionfish can grow to 1 and a half feet.

Lionfish are hunters. They wait patiently, motionless, for their prey (often crustaceans and smaller fish) to come within reach. Then-ZAP! One whip of one of their spines cuts the animal, drops of poison enter the wound, and that animal is a goner! The Lionfish will grab the animal with its' mouth and gulp it down, much like an Anglerfisher does. In captivity, Lionfish like to eat live smaller fish like guppies and goldfish. If you are planning to keep Lionfish in a tank, don't keep them on live fish exclusively. Add in some seafood as well- possibly some shrimp pieces. A report in Sea Scope magazine from 1998 stated that keeping Lionfish on guppies and goldfish alone can cause a deficiency of fatty acids that they need to stay healthy.

Another caution-keep your hands out of the Lionfish tank. Lionfish are not aggressive by nature to people, but if you happen to accidentally brush up against one of their spines while cleaning something out of the tank, you'll be sorry! The sting can feel like a severe bee sting to a painful ache that lasts a month or more. If you are going to clean the tank, check with an aquarium or with a reputable fish seller on the best way to do it.

Lionfish are part of a group of fish commonly called exotic fish. Often, Lionfish get too big for a tank and the owners of the fish don't know what to do with them. The best answer is to check with the fish store where you purchased them and ask if you can sell them back or if someone else may want them. DON'T DUMP THEM IN THE RIVER OR IN THE WATER SYSTEM WHERE YOU LIVE! This is hazadous in many ways. For more information on this new danger to our water systems, click on these links:

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