Yes, thats exactly what i was thinking. They had a really neat mushroom rock at the LFS, which ill probably be getting soon.
I do have a concern though: My flowerpot is not extending all the way, it looks healthy, but it stays small, and is nothing like when i first got it. What could be up? I just did a W/C last week, all params are normal, nitrate - too small to read. Any thoughts?