Hi all, I have a question about grape caulerpa. I currently have a 10g nano with an aqua clear 110 doing double duty as diy mechanical filtration and refugium. I have about 2 lbs of lr in the refugium and cheato, the cheato is coming on like gang busters. My sg is 1.026, ph 8.4, nitrites 0ppm, ammonia 0 ppm, nitrates, 0 ppm, dKH 179, calcium 520 ppm, and phosphates 0 ppm. I was doing a 1 gallon water change per day until I did this DIY refugium with the aqua clear 110 last week. I did daily nitrate monitoring for 7 days so I could get a handle on the nitrates and never went above 0ppm, so now doing a weekly 30% w.c (yesterday was the first in this regimen). My problem is the grape caulerpa, I am trying to starve it out with the cheato but seem to be growing both very well. The caulerpa is in the display and it is in the begginning stages of being a nusance. I manually tried to remove as much as I could today but that is very tough stuff to try to scrape of off the irregular surface of rock. Help, anyone have advice? Thanks in advance!