Hi everyone, just joined, from Stafford and happy to be here, I'm currently in the process of converting my African Cichlid tank to a South American tank, the water is now reasonably soft and a few of the fish are in. What I'm after is some advice on which aquatic soil to use, I've only ever used normal potting soil before, which is fine but SO messy! I want to cap whatever I use with sand although quite large grain sand, so the soil needs to be quite fine. Does anybody have any recommendations?