RustedKnight
Fish Addict
Im not sure how accurate it is, but I used the calculator at the top of the page.
Thats tells me my tank is 20 litres smaller than i believe it to be.. So, either mine, or that, is off.. *goes off in search of research*
But I would recommend 7.5 - 10kg of sand, should be plenty.
That was veryy helpful!
/www.homedepot.com/h_d1/N-5yc1vZ1xgf/R-202007298/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053