*Sold Out! This formula is an effective colorless aid for fresh and marine tank species suffering from Parasitic Protozoans, Hexamita, Angel and Discus disease, Hole in the Head, Weight Loss, Velvet, and Cryptocaryon. This Metronidazole treatment is safe in a community tank and will not affect the biological filter bed. 250 mg caps. Shipping-Weight: 0.15 lb |