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Another question that has been beat to death over the years, I know….but I haven’t really heard of it keeping up with the times. In previous tanks (pre Rollermat) I was religious about my water change percentages (I started with 10% weekly manually and graduated to 1% a day when I setup my first auto water change system). Now that I’m a few years into my newest tank, I’m contemplating the whole 1% per day auto water change. It’s a high flow, bare bottom, with a Rollermat, skimmer and uv. I never before ran a Rollermat or uv. I’m having to dose nitrate and phosphate daily to keep them in check. I’ve never had to dose those in previous tanks. I know there’s methods of not changing water and adding elements as needed, but that’s not really what I’m getting at. Although, I am having to add in potassium, iodine, and strontium every few months or so. Ruling out element replenishment as a basis for water changes, which at 1% daily/10% weekly/20% bi-weekly really wouldn’t keep up anyway. Is that old tried and true standard outdated with the newer types of filtration available? Is it time to start thinking about cutting that number in half (full well knowing that some additives will be needed to be dosed)? Are we realistically headed towards zero water changes across the board, and not just on the fringe with triton or moonshiners? Anyway, I’m just thinking (a first for me) that I’m just wasting a lot of water for no reason other than it was once written in stone.