Is this a high tech tank or low tech? If the latter plants don't really carpet in a reasonable period of time (think years instead of weeks or months). If the former then any carpet plant will live and spread but none will spread as well as if it were aquasoil or sand.I have a combination of eco complete and crushed coral/shells for a substrate and am looking for suggestions for carpet plants that will root and grow well in it.
Choose a sand with large grain size like medium grit blasting sand, pool filter sand or aquarium specific, non-buffering sand.It is seeming like sand is the answer for carpeting plants but I hear that sand makes a real mess. Is this true? I guess siphoning is out of the question with sand?