AQUARI-SOL (PARASITE PROTECTOR) 16-oz APPRO: AQUARI-SOL (PARASITE PROTECTOR) 16-oz $7.99 SKU: APPRO14 QTY: Click here to save 5% off of your order! AQUARI-SOL A mild parasite preventative that protects pond fish from ick, Velvet Disease, grey-slime disease and other common protozoan parasite infestations. Aquari-Sol stops pond fish from scratching or flicking against rocks in the pond and prevents sluggish behavior.  Gentle enough to be used as a weekly preventative for ick and other illnesses. Safe for most aquatic pond plants. 16 oz. treats 8000 gallons.