Well I finaly got around to adding a ATO to my QT tank.. Tunze 3155 the best ATO imho.
I had one issue and it was the pump no sitting flat on the bottom of my ATO container (new 5 gallon bucket) this was quickly fixed though.

Nice and easy fix...
As for the QT setup and mixing station I had to make a manifold for my R/O as it will make life easy later down the road.
The state of the QT and mixing station as of today... I am going for functionality over anything as this is going to be a work environment and plan on spilling and making a mess..
As for the stand I have started to paint it.. I will be working on it for the next 3 days..... You will actually not see any of it as it is going to be finished in Acrylic and Sintra (PVC) but do not want it to oxidize.
Tools used

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I planed on it to be powder coated but with the amount of holes that I am drilling I find powder coating some times just does not hold up.