Have been looking at nems and wanted to get some opinions about which might be the best for me. Carpet, LTA, or BTA. I have a large area of sand bed that I would like to fill, which steers me toward a carpet or LTA. In the near future, I would like to get a pair of clowns, so this must also be a consideration. Just looking for any information about these nems that I should consider before stocking one? Thanks