Crushed Coral


Crushed  coral can be great for saltwater or freshwater aquariums. However there are some cons that may outweigh the benefits. Refer to the bulleted lists below.

Crushed Coral Pros :

  • Helps stabilize PH by increase KH and GH
  • Will never need to be replaced (if vacuumed regularly)

Crushed Coral Cons :

  • Can develop small pockets of fish waste and food causing nitrates to rise.
  • Needs to be vacuumed a minimum of once a week. Therefor crushed coral would not be a good choice for a planted aquarium.
  • Not easily penetrated by fish and invertebrates that like to dig and hide under substrate.