Thanks for the sump tip. Sounds like it'll work. Like NYfish I am using an Aquarium Pharm. tap water filter. I have no phos/nitrites in tank. I usually run apx.15-25 nitrates but w/BB and no more bioballs this should be brought down. Unfortunately I got 4 cartridges for Christmas. I'll use them up & then convert to RODI. Any suggestions on a good RODI unit. |