I added a female red velvet fairy wrasse to my tank about a week and a half ago. She's been spending a lot of time hiding in the rocks, but when she does come out, she is mostly lying on her side, swimming along the bottom, or floating upside down. Right now I can see her in a cave upside down - she'll occasionally poke her head out to look at me. Several times last week I actually thought she was dead, but she comes out readily to eat (though appears to swim normally when coming out for food). I'm now wondering if this is a swim bladder problem? If so, is there anything I can do to help her? Thanks!
