Iodion 8.45oz (brightwell aquatics)

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$11.99 

Highly-concentrated, extended activity aquarium iodide solution 
Provides iodide, which is important to hermatypic corals and other invertebrates harboring zooxanthellae, macroalgae, and also to the health of fishes 
Stronger than most competing products 
The nature of iodide sources used makes Iodion more effective than standard iodide-solutions 
Suitable for use by aquarium hobbyists of all skill and experience levels 
Composed of purified water and ultra-high purity materials 
Formulated by a marine scientist 
Basic Instructions: Shake product well before using. Add 5 ml (1 capful) of product per 50 US-gallons of aquarium water every two- to three-days or as needed to maintain the iodine concentration within a range of 0.04 - 0.06 ppm. When used in this fashion, 250 ml treats up to 2,500 US-gallons (9,464 L).