I don't really run any true system, but more of a hybrid mix of things. Every now and then I will dose vinegar to drive down nutrients. While dosing vinegar I use MB7 to help with bacterial diversification. I also use the zeovit nano pack at 1/4 of their recommended dosage (cv, aa, sp, xtra). Every now and then I will dose trace elements but other than that i don’t do anything special. I also do not change the water in the tank. But I clean my poly filter pads in my sump every 3-4 days and clean my skimmer every week or two.