Substrate & Gravel

Substrate is a natural decorative layer. An anchor point for roots. A means of storing and supplying vital minerals and nutrients, and a home for beneficial bacteria. A 1cm thick layer of the substrate is placed over the base of the aquarium. This is then covered with a layer of fine two to five millimetres (grain size) gravel which will effectively ‘cap’ the substrate and prevent it clouding the water column. This substrate should be covered with at least 3cm of gravel to effectively separate it from the water to prevent clouding. It should be made deeper at the back of the aquarium to give it a sense of depth
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