Have you done parva emersed? If so, does it help the slow growth rate?HeyPK said:C. parva is really slow. In perhaps two years, you will have a good solid cover of parva. If you are Amano, you can buy 200 parva plants and get a solid cover soon. Try some Glossostigma. It is fast, and you will probably not see the parva once it gets covered with Glosso.