Atlantic Bio-Rock Media promotion eliminating the guesswork of selecting

eliminating the guesswork of selecting lighting components individually

MPN: 43005

The unique sponge-free design minimizes maintenance and maximizes efficient mechanical and biological filtration

Winkler’s dissolved oxygen test will give a false low or zero reading

They are the first modular sheer descent system with multiple light and configuration options

Atlantic Bio-Rock Media promotion eliminating the guesswork of selectingMPN: 73987 High surface area provides the optimal environment for beneficial bacterial colonization With all of the surface area but 25% less weight than lava rock and half the weight of gravel, expanded clay Bio Rocks are the more stable, less abrasive alternative to heavyweight bio media Expanded clay is a lightweight, stable, and less abrasive alternative to lava rock and gravel Durable and easy to clean Use one box of Bio Rocks per BG2234 Media