I’m still considering myself a beginner, although I’ve learned and applied many of the ideas from this forum, which have been very helpful in getting my 36 gal tank in a good place. Please see my profile for tank specs. I have two large pieces of driftwood, plastic plants, and java moss. My water is quite hard but I haven’t tested it. First, I’d like to remove the yellow appearance of water caused by the dw. I have a prefilter on both intake tubes, filter floss in both hobs, 100mc filter pad in ac hob (Sponge-floss-pad-biomax). It’s been 4 mths since ac hob start, so I should replace the biomax. I was thinking on using chemipure elite. I did remove the charcoal from ac last month, as it was time. My thought was that the chemipure would help both hard water and clear up the water. Any suggestions?