Garlic would be helpful if the fish isn't currently wanting to eat, but wont do much to boost his immune system if he's already eating. The vitamins such as selcon will do much more for him.
Thanks for all your help! The naso tang (Mo) has started eating again today! Prazipro has been in the tank since Friday morning and she seems to be feeling better.
Dory (obviously the hippo lol) is still eating and as crazy as ever. The bumps look gone again but she looks as though she may have ich. We purchased selcon hoping it will keep her healthy while we are away.
Thanks again for all your help!!