What is the best for my basin?
Unless otherwise stated in article description the best soil would be a mixture of soil-loam or sand-loam (e.g. 2:1). It is unadvisable to use pure sand, especially fine grained sand because it dries out very fast and it tend to collapse. But also raw gravel is totally inappropriate, and raw loam should’t be used because it tends to become very concrete if it dries out. The soil layer shouldn’t be too thin because keeping soil humidity constant can become very difficult. However there are some ants species ideal for keeping them in ytong stones. Attention should be also paid to moistness of the stone. It is desireable to embed this stone into the soil so that moistness from soil can pour into the stone from bottom.
