Aquasonic Para-Gone Tabs – External Parasite Treatment Product Overview Aquasonic Para-Gone Tabs is a targeted treatment designed to control external parasites like fish lice, gill flukes, and anchor worms in both freshwater and fish-only marine aquariums. A trusted solution for aquarists facing visible signs of parasitic infestations or behavioral indicators like flashing or rubbing. Use with caution on Plecostomus, Bristlenose catfish, and Silver Dollars. Features & Benefits Broad-Spectrum Parasite Control Effectively targets Argulus spp. (fish lice), Ergasilus spp. (gill flukes), and Lernaea spp. (anchor worms). Convenient Tablet Dosage No need to measure liquids — just 1 tablet per 40L makes treatment simple and mess-free. Adjustable Regimen Flexible dosing intervals depending on parasite type and temperature conditions. Suitable for Freshwater and Fish-Only Marine Aquariums Can be safely used in non-reef saltwater tanks with adjusted dosage. When to Use Fish are scratching, rubbing or showing stress. Visible signs of lice, worms, or flukes. Quarantine treatment for new or wild-caught fish.