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Sand as substrate
Hello everyone,
Is regular sand, say of the typical sandbox type, an appropriate substrate for a planted aquarium? At first I thought it would do just fine (which it may be, for all I know). It's cheap, and I figured it might make it easier to plant the plants than regular gravel. However, I'm now wondering if such a substrate might be too tightly packed for the roots. I mean, could it prevent enough nutrients from reaching them? Is there a chance the roots or buried stems might rot because of it? Is planting easier in sand than in gravel? The smaller grains might "mold" the lower stems and roots better, holding the plants into place better than gravel. But I have no experience with this, and it's entirely possible that it's actually harder with sand. Also, what happens when you use a siphon in sand? Is it light enough to get sucked up along with the water? If sand is a good substrate, are there types that are unsafe and should be avoided? I assume the nature of the sand is a factor, like sand that releases heavy metals or other toxic substances. Thank you for your help. Francois |
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