Originally Posted by somewhatshocked
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.
cheers for the input matey... its only a few extra ££ for 4kg of shrimp stratum over the 2kg of plant stratum so i'll do it that way round