If you're familiar with the hth test kits it's the darkest yellow they have which is 5-10. It's not any darker than that.
I don't think I can post pics on here so if I haven't made it known my water is crystal clear but for the stuff on the bottom that I keep attempting to vacuum up. I've vacuumed to waste and filter several times each, but now seem to just be moving it around more than sucking it up.
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