Dennis Wong
Active Member
it grows very fast, so if you do not like trimming very very frequently it may not be a good choice. I think the issue isn't floating, but that it will grow very thick quickly without frequent trimming. Smaller crypts are quite low maintenance, as are smaller buceps/anubias when used as foregroundI was considering adding some elaine triandra to the carpet to get the soil covered, since the hairgrass is taking a very long time to fill in, as expected.
I saw that you noted it has a rather shallow root system but spreads quickly. Do you think a large carpet of it may be problematic as far as floating when it becomes dense? I had that issue with Utricularia and Micranthemum if I wasn't incredibly diligent with thinning it out, which is why I chose hair grass this time.