Tip of the Day – 5/26/10


Crushed Coral substrate is a terrible choice of sand for your aquarium. And by “Crushed Coral”, I’m referring to the very large grain substrate that is sold by that name. It has a much lower surface area when compared to finer grain sand and it trap detritus, as well as grow all sorts of nasty looking algae on the surface of the individual grains.


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