So I believe the red slime and hair algae is under control I am seeing .25 ppm phosphate in the tank, 0 trates, no more hair algae just a few here and there still hanging on that I think the blenny will take Care of, and red slime is mostly gone except on little bit on a rock and a thin dusting of it on the top of the sand.. How can I get rid of this? I've heard it can be attributed from poor flow? My ro has 0 phos and trate, and my tds is 1, also I read on this forum that when using a gravel cleaner to only do the surface because it will release nitrates and you go all the way to the bottom is this true?