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Aquarium sand: How to pick the right substrate for your saltwater aquarium

How to pick the best saltwater aquarium sand: decisions, decisions, decisions. When I first started in the aquarium hobby a thousand years ago, the decision about what aquarium sand to use was pretty simple. There were really two decisions: fine sand or coarse (crushed coral), deep sand bed, shallow sand bed/bare bottom. Those are still two of the more important …