dvm

i have an angelfish that has ick i treated him once but it seems to have gotten worse. i have him in a seprate tank by himself. it is a 2.5 gallon tank but i don't know how many drops i need to put in.

SereneReyn

just turn the temp up to 82+ degrees for at least two weeks. no medication necessary. 2.5g is tiny, so do plenty of water changes, etc.

COBettaCouple

If you can get a bigger hospital tank for him, I'd recommend that asap. The stress of being in that small of a tank won't be good for him. No meds are needed, but I'd recommend ICH-Attack and Fish Protector daily, if you can get them.