Okay, so I have 2 fish and they have ich/velvet. Garlic feeding and focus/metro hasnt worked and I have used that stuff for a few weeks now. I have set up a small qt 5.5 gallons and put the fish in. I did this yesterday and started with instant ocean lifegaurd because thats all i could find. I will be picking up copper meds today. I have a heater and a hob filter running with no carbon or filtration, just as a water mover/oxidizer. I feel comfortable copper dosing and testing but my question mainly is about ammonia build up. I am thinking of doing a 50% water change everyday for the qt to prevent ammonia levels getting high. I am concerned however that there will still be some ammonia present. Is this ok for the fish if there is a small amount of ammonia? Also does anyone have any suggestions on how to best keep down the ammonia besides daily 50% water changes?