Ok, I've had these NTT's since when they were about quarter sized. They're about 4 months old. This morning when I woke up, I found one dead on the surface. Does anybody know what caused this? I see 1 side has a swollen gill, and the other side has none. I only feed Market Shrimp and live Blackworms.
Here is the picture 4 months ago when I got them.
Here is the fish I found this morning...
http://i17.photobucket.com/albums/b73/YooniCwah/photo-10.jpg
Are these things contagious? I have mostly IT's in the tank.. Do I need to something into my tank before things happen? Please help, I can't afford to lose my IT's I have a quite a few of them.
Here is the picture 4 months ago when I got them.
Here is the fish I found this morning...

http://i17.photobucket.com/albums/b73/YooniCwah/photo-10.jpg
Are these things contagious? I have mostly IT's in the tank.. Do I need to something into my tank before things happen? Please help, I can't afford to lose my IT's I have a quite a few of them.
