Excellent Result - Must Use !!!Buy It Now Suitable For All Aquarium Fishes Proven Formula For External And Internal Parasitic Infections. Paracidol - Fw Is Very Effective Against Koi Sleeping Syndrome And Also Against Argulus Sp (Fish Lice), Lernea Sp (Anchor Worm), Gill Flukes, White Spot / Ich, Costia, Hole-In-The-Head Disease And Other Parasitic Infections. Paracidol - Fw Strictly Not To Be Used With Invertebrates. Dosage : 10 Ml / 100 Litre Packing : 120 Ml I Will Put This Bottle In A Bopp Cover And Tightly Rap With Adhesive Tap Protecting The Item Well When Shipping The Item To You.