I dunno what happened! When I got my 30 gallon tank I did my fishie shuffle and I found that I could use my 5.5 for Kane my betta. . . I put him in there and I woke up the next morning and he was COVERED in fin rot and some kind of white feathery looking fungus!!! My poor baby!! I took him out and used my 2.5 as a makeshift hospital now 2 days later he is looking MUCH better and he even starting to swim around again. . .I felt so bad I don't know what happened. . . I think I'm going to sanatize the heck out of everything in that fish tank and start from square one. That was just too close for comfort even though I did everything as I normally do the levels when WAY wrong. . . I'll look into it. I'll give you updates on Kane's condition.
) out if that tank really really well and treat kane in the hospital tank until he clears up then put him back in the other cleaned out tank.