Parasite Guard Tank Buddy Tablets - 24 Tablets Total (3 Packs with 8 Tablets per Pack) by AQUARIA/MARINELND EDWARDSVILLE 24 Parasite Guard Tank Buddy Tablets Total (3 Packs with 8 Tablets per Pack) Parasite Guard: clears parasites fast Each Tablet treats 10 Gallons arasite Guard removes external and internal parasites from tropical fish including flukes, internal worms, lice, anchor worms, and flagellates such as hexamita or spironucleus associated with hole-in-the-head disease. Also protects against secondary infections.