I am going to rescape my tank as some of my plants are not getting the light they need as other plants have grown over them. My main concern is with my dwarf hairgrass, what is the best way to tear that out? My DHG has not carpeted since I don't have super high light or injected CO2, but much of it has sent out runners. It may seem like a noob question but when I bought the stuff it was in a pot and I seperated it and planted it. I want to replant it so need it in good condition. The other plants are Swords and I think a crypt, pulling them out I'm sure is easy but should I trim their roots back at all as I'm sure they have spread under the sand and become pretty long.