Red Sea KH Coralline Gro Clearance Methylene Blue is less toxic

Methylene Blue is less toxic than some other treatments

Easy to clean and long-lasting

it comes in 500g packs suitable for various aquarium sizes

Its reef-safe formula makes it suitable for use during quarantine and acclimation

and odors from freshwater and saltwater aquariums

Red Sea KH Coralline Gro Clearance Methylene Blue is less toxicRed Sea KH Coralline Gro is a specialised supplement that supports the growth of coralline algae and other calcifying organisms. It provides carbonate hardness, minor and trace elements that coralline algae require, helping to quickly create a purple, encrusted live rock appearance in reef tanks.