bud;3883742; said:I'll flush the fish no problem
No reason to flush the poor guy might as well try to treat it. You need to treat the whole tank at this point even if you get rid of that fish because transmission is pretty much immediate (does not mean other fish will show symptoms though if they are in good condition and not "stressed" they very well may fight it off. It floats throughout the water though so any transmission has likely already happened.

That was quick.