You have no idea. They swim like an iridescent shark, eat like a red tail catfish and are very bitey when kept in tropical temps. They LOVE current, too. When kept at 68-72*, they're much more manageable.
They have an incredibly winning personality though. Very alert and aware. Not really afraid of anything. I love the cobalt blue color of them, too. I really want to try one again some day when I have to means to give it the specialized attention it needs.
Here's my old girl Marilyn-
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And they rip your hands up when noodling for them.

