i went to my lfs to pick up some fish for my cycled tank and i got some angels and some neons just to start out.......one of the angels is fine, he swims around and plays in the bubble curtain in the back, the other one just floats around and when it finds its way to the bubble curtain he floats up, hits the surface, floats over and hits the front of the tank.then sinks down to the bottom and does it all over again...right now he's just laying on the bottom motionless..........i just got them today and the other one is perfectly fine.....i did some research and i think its swimbladder. What types of medication/treatments can i do to help him???thanks for all the help........