I found these tidbits on both of the products from API's website.
Pimafix
"Treats fungal infections and both internal and external bacterial infections. Will not adversely affect the biological filter, alter the pH, or discolor water. Safe for reef aquariums and live plants. For use in fresh or salt water. PimaFix has been formulated to work in combination with Melafix to enhance effectiveness against fish diseases."
Melafix
"Heals open wounds & abrasions, treats fin and tail rot, eye cloud, mouth fungus and promotes regrowth of damaged fin rays & tissue. Will not adversely affect the biological filter, alter the pH, or discolor water. Safe for reef aquariums and live plants. For use in fresh or salt water."
Would you guys trust that? If so, I can remove the carbon (which will help because then no bacteria will be on the carbon and have a drastic loss when I change filters), use both of them together as instructed (putting them in immediatly after any water changes that day so it has time to work) and just carry on with cycling as planned.