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- Effectively controls Red Slime (cyanobacteria) in saltwater reef aquariums.
- Use Two Little Fishies Phosban in your Phosban Reactor or in a mesh bag in your trickle filter. Comes with mesh bag.
- The ferric hydroxide in this formula adsorbs phosphates from saltwater and freshwater.
- Treats 300 gallons freshwater and 150 gallons marine.
- OCReef.com tested and recommended product.