So I have a 167 peninsula for almost a year now. I’ve got high nitrates and phosphates that I’ve been battling (nitrates 50/phosphate now 4.4). I did add a bag of seachem matrix maybe a moth ago and my monti cap and a blue milli went bye bye. But I have other spa corals that are growing. I currently have a skimmer, huge chaeto ball, I change filter floss regularly. I have 21 fish, feed nori in the morning, flakes midday, frozen for dinner, not a whole lot each feeding (food is gone within 2-5 minutes). I dose acropower daily, three scoops of reef roofs and about 20-30 mls of phytoplankton daily. What do you recommend I do to bring nutrients down?