Help. I have a 20 gal tank with two canister filters one clown one exquisite fire fish and one pj Cardinal as well as one zoah frag and a toadstool frag. My tank now has (I think) Lyngbya, diatoms, dinoflagellates and a little bit of green hair algae. I tried many different ”cures“ and none work. My phosphate levels are good so are nitrates, nitrates, pH, alkalinity, magnesium, calcium. Help please.