Check the listing for details. KZ Flatworm Stop (250 ml) - Korallen-zucht. Condition: New. Listed at 50.09 USD. Flatworm Stop strengthens all kind of corals and reduces parasitical flatworms on Acropora corals at the same time. Very valuable ingredients are assimilated directly after dosage. In our tests also ailing small polyp stony corals recovered and rebuilt the basis as well as gained back the original coloration. Liquid Additive / only intended for Marine Aquarium use A holistic approach to Acro-Eating Flatworm infestation Long term use can also improve growth and vigor in SPS corals Completely reef safe and will not harm any other vertebrate or invertebrates Dosage: 1 ml / 25 US-Gallons (1 ml per 100 Liter), Daily Dose directly into the tank. For ailing corals dosage can be increased to double or triple. Listing and template services provided by inkFrog