I have a 10g with 4 cherry barbs and 2 female guppy. I just noticed one of the guppies has white spots and is lethargic. I ran to the local pet store and got sme API ich treatment (it was all they had). I dosed appropriately, removed the filter, turned off the under gravel filter and am slowly raising the temp of the tank (76 up to 80). Is there anything else I can do? It is so sad watching the healthy guppy hang by the sick one I will feel so bad if she dies.