under gravel filter

Avast Marine CS3 Cone Skimmer

FILTRATION METHODS

  FILTRATION METHODS When a fish, snail, crab, copepod, shrimp, or coral eats what happens? They poop! When poop is submersed in water it dissolves and becomes detritus, or waste powder. Detritus causes ugly rocks, sand, and feeds bacteria and algae. We do not want Read more here…