My daughter's new Betta - Olaf - got all symptoms of dropsy about 10 days after we got him. He would only stay on top of the tank - mainly in the corners, hardly moving, not eating. I was changing his water at least once a day and after couple days started adding the Epsom salt. It's been 17...

Hey guys, so my betta has been doing this strange thing where he is swiming near the top of the tank and then he'll freeze and float to the bottom, collapse and remain motionless for about 10 seconds. Is my betta passing out? Here is his info: Housing What size is your tank? 10 gal. What...