Thanks so much! I've been trying to keep an eye on it, but it doesn't look any different. Do you think I should put him in a hospital tank, just to separate from infecting others? Like I was saying in the other thread, it's only that one spot.
I do 50% water changes once a week. I'll try to take a pic of the actual fish tonight and post it tomorrow if I can find the sucker...
Impur: I've had him for about 6 months now and he was fine the other week. Just seemed to show up within the week.
Also, it may be a possibility that my three-spot may have nipped him... He's a nasty little fellow. I've moved him from that tank to my 5 gallon.
Thanks for everyone input and concern! I'll keep ya'll updated!