My 12g tank which we divided into 3 is the cause of all my
betta's death in the past month or so. I realized that Holly, Mr. Peach, Jasper, Aries and Buster (who isn't doing well today) were all in that tank since last Christmas at one point or another. Holly was always in it except the 15g for 2 days or so, until I realized she was eating the flakes for everyone else when I wasn't looking.

The bn fry in it now and are growing fast I don't think she was in it long enough to pass it along.
I am not sure which of the deadly diseases the tank carried, but I am not using it for fish ever again. Not even if I were to bleach it.
I have heard of other fish keepers having a tank which every fish that lived in died in short period of time. The tank of death someone called it.

At least I know what the problem was. We keep our tanks so clean and treat our fish which need to treated. It's kind of scary when you can't figure it out. I clued in last night before bed, when Buster looked a bit swollen and his fins haven't looked right since he started chewing them. He hasn't grown at all and he is/was small since I got him from Walmart (never again) back in March.

This confused the heck out of me. Glad I figured it out before I put anyone new in there.
