Marine Pure Biological Media - Block (8 x 8 x 4 Inches) 20 X 20 X 10CM Short Spine Pencil Urchin (Black) and has an extended shelf

and has an extended shelf life

Fully adjustable flow

Yellow Pseudochromis have a completely yellow body that will add a dash of color to most tanks

and the Carpenter’s flasher wrasse is no exception

800 °carbonate hardness and 17 mg iodine

Marine Pure Biological Media - Block (8 x 8 x 4 Inches) 20 X 20 X 10CM Short Spine Pencil Urchin (Black) and has an extended shelfMarinepure creates the perfect bio home for bacteria with its porous inert structure and designed to maximise filtration with bio film technology. Designed for Ammonia and Nitrite Removal Primarily designed to provide deep anaerobic zones for de nitrification in passive systems. Live rock substitute popular among reef hobbyists as a substitute for live rock because it reduces nitrates more efficiently without harming the environment. Use in sumps,