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Squareback Anthias (Pseudanthias pleurotaenia)

The Squareback Anthias or Pseudanthias pleurotaenia is a saltwater fish that goes by a few different names including the Purple Blotch Basslet, Squareblock, Mirror Anthias, Square-Spot Fairy Basslet and Squarespot. Females of this species are yellow with a purple underside. Males are mostly pink with a purple underside and a lighter colored rectangle on their sides. They are not particularly large, only growing to about 4" in length. You can check out the Squareback Anthias in the video below...

Squareback Anthias are often kept in the aquarium and considered to be quite hardy. The following water conditions are acceptable for this fish in a tank of about 35 gallons, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025. They should be fed brine shrimp and flake food twice a day. One thing to note about the this species of Anthias is that if you expose them to too much direct or powerful light their colors will fade drastically.One strange fact about this fish is that they are hermaphroditic. This simply means that if a male dies the largest female will actually change into a male. That's right they will have a sex change, and without the big bill!

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