About a week ago I added some Figi refugium mud to my sump (8" x 14" refugium). After adding it, it looked like a diatom problem started, but it is getting worse and the sand is looking almost like a blanket of dark color....I looks like it is turning into an algae problem. Do you think it would be a good idea to remove all the refugium mud i just added and do a couple large water changes, before the algae gets out of control?
