Yes, we all have different levels of nutrients in our reefs. The way the term nutrients is used on all the reef websites basically makes it a level of waste, not like a vitamin the body needs
100 gal sump with filter socks and some LR for additional filtration
40 gal refugium with a 4 inch sandbed and lit with a 55W PC 10 hours a day
The taller one is a reefmania media reactor with carbon in it and shorter one is used for phosban, I use about a gallon of carbon a month and 300gm of phosban. The tank behind them is a surge device for my prop tank(pool). The round blue drum in the corner is a 35 gallon RO\DI tank for top off