Does anyone have any experience with the silicabuster cartrige in their ro units ?.....i am having trouble with diatoms on my sandbed..... it has to be silica in my tank because my phosphates are reading .04 ppm..... dont have a silicate test kit to test level...but i noticed the silicabuster cartrige really drops the ph....i tried to run the silicabuster in my double chamber brs reactor under the tank just to get rid of the silica in the tank and it dropped my ph to 7.8 within 15 minutes so i took it off line and my ph is slowly coming back up....my normal ph is 8.0-8.2..... but none of my corals or fish are showing any signs of stress.....anybody else ever try this ?