sedimentation
Its the rock, sand, gravel, whatever on the bottom of an aquarium.
You mean substrate?
because the fish want it
I have a 120 Gallon aquarium with sand. They love it.
a terrarium empty.
Yes ofcourse you can have them in your saltwater aquarium. You have to provide some space in your tank with good sand and feeding sand dollars is easy, for they mostly eat suspended organic matters and other fish wastes.
Sand Masters - 2011 Aquarium of the Pacific 1-12 was released on: USA: 21 August 2011
Sand and chalk can be separated through the centrifugal process. A centrifuge makes high speed cycles and the materials of different densities will be separated.
yes you can
No because the sand will make the water dirty, small rocks are usually the best.
Yes, but be prepared for some cloudy water.
gravel rocks sand peebles water