Hi all, First I wanted to say thanks for all the helpful advice and tips I've gleaned from this forum over the last six months, it's made setting up and establishing my tank a dream. I have a 300 litre tank, all variables perfect, one Sterlet and two goldies. I thought I had removed all hazards, but my poor Sterlet found one and when I can home she was stuck and twtixhing. I've outer her in a hospital ta k filled with water from her aquarium and put in an air stone. She seems a little more "there", but is still lying on her side with her gills going like the clappers. She surges forward every so often, but then stops and floats back toward the surface. Is there anything else I can do? She is the pride and joy of my tank and I want to give her the best chance possible. Thanks so much in advance and sorry if I've used the forum incorrectly at all. First post and I'm a little stressed.