Tag Archives: rocks

How to Add Rocks and Wood to Your Freshwater Aquarium

Rocks: As regards water chemistry, choice of rocks is just as important as choice of substrate. Calciferous materials – limestones (including tufa), corals and shells – should be used only in marine, brackish or hard water biotopes, not the general community, especially if its water is already hard and alkaline. Otherwise use inert rocks such

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