Guy has 30+ years in the hobby and you can see it with all the DIY modified equipment, regimens, etc. that he runs. Might try his skimmer pump trick when I get a bigger tank, but you can see the thought that goes behind each choice they went over in the video. Runs @Thales and @under_water_ninja level nutrients too (you can see the minds of the newbies in the comments blowing up!)