I'm getting ready to re-scape my 10 g. I have a bunch of Dwarf Hairgrass that's been in there for about a month that I'm going to divide up and plant to encourage it to form a carpet. I was thinking that I could put it under the filter, as it seems like the shorter hairgrass will be less bothered by the strong current than taller plants would be. It would also not impede the flow as other plants might.
This being said, I have a hang-on-the-back type filter rated for 5-20 gallons, and it creates quite a good amount of current. I was wondering if anyone knew how dhg reacts to high current. Will it have trouble getting started? Will the constant motion weaken its roots? I haven't been able to find any information in regards to these questions, so any advice would be helpful!