I use a modified version in my 90 gallon... I have a plenum made from screen covered eggcrate matrial, plenty of powerheads for circulation, but no protein skimmer. I run two magnum HOB
filters to pull large particulates out of the water column. For left over food clean up, I have shrimp, hermits, and a platoon of nassarius snails.
I just ordered a CPR HOB
refugium for my macroalgae and to promote pod population.
So far - everything is good. This is year # 3 with this system with two major crashes - neither due to the system, really. Crash #1 was an anemone death while I was on vacation and crash #2 was minor ( only two fish lost) due to a powerhead meltdown underwater which released toxins into the tank.
In Portland. ME, there is a LFS
who runs all of her large show tanks like this and I must say that she has some of the most beautiful tanks I have ever seen. But like everything else, you will get mixed reviews about this method.