The Planted Tank Forum - View Single Post - how much substarte??? wanting to order!!
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Old 01-08-2013, 04:42 PM   #5
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You can't base this on weight. Fluval Stratum is extremely light-weight.

Additionally, Fluval Shrimp Stratum (same as Plant Stratum, just smaller grain size) would be a better scale for your tank.

You'll want to get at least 4kg. May have a bit left over but it's better than not having enough.
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