hey amba, thanks! i'm stoked that the LEDs are putting out more PAR and i can run them at less intensity and they cover better than my last nano box reef unit. i am going to put the nano box reef over the DT.
in regards to the tubing, i would think this depends on the skimmer you have and the fitting on it.
i have a SWC 120 and 160 cone and both had the same size fitting on them. i used 1/2" x 3/8" OD x ID hose. use some hot water and dipped the end that was going on the avast skimmer lockers and slid it on with some muscle and it slipped on.
there are a lot of reviews on the other forums and the stuff is remarkable, affordable, and well-supported. the awesome thing is that "captain" lives fifteen minutes from me, so it's cheaper, faster, and easier to get the "booty" and ask whatever questions, haha.