Ok, 1/2tbsp is approximately 1.5tsp. I want you to dissolve in a separate container of tank water (or a cup of tank water) enough salt to bring the level up to 2tsp per gallon. Remember, you already have 1.5tsp in the tank so subtract this from the total amount. So, for a 5g tank, you want to add 10tsp of salt minus the 1.5tsp, so this equates to 8.5tsp of salt to dissolve in some tank/conditioned water. Add the salt solution gradually over a 12-24hr period. I would continue meds for another week in addition to maintaining the salinity @.2% (or 2tsp/g). I do not see any signs of fungus but the fungus meds contain some antibiotics. Alternately, you can switch to a different med at this point (triple sulfa, tetracycline or maracyn2) if you have access to other meds. If you dont have access to other meds, just continue the fungus meds. Please ask if you have questions!!