Chem-Marin`s Stop Aiptasia helps you control one of the biggest pests in the aquarium; Aiptasia. Simply inject the Stop Aiptaia (with the applicator syringe) and watch it do its job. The Aiptaisia should turn dark in color and fall off the rock within 12 to 24 hours.  They may then be removed from the tank. The Stop Aiptasia is totally reef safe and will not harm any corals, fish or invertebrates. It may also be used in conjunction with any medication that may be present in your system. Stop Aiprasia should be shaken well before use and kept refrigerated. This product is 100% organic and biodegradable. 6 oz.