I finished the 20g QT today. It's not pretty, and will never be.
I tried to use some 3/4" pipe with a union and such, but it was too snug. I wanted to avoid using hose for the algae issue but this is the most quiet and flexible setup.
I have some 5" PVC for caves that isn't in the pics. It'll do the job.
There's an AC50, an 8W UV w/Quiet One 1200 and Eheim 100W. Maybe it's overkill, maybe not. The QO 1200 is padded by a piece of
filter material from J&L. I tested it in the sink and there's no way I'd ever have the suction cups holding the pump in the tank.
And, ya, I wasted $15 on one of those Hagen surface skimmers for the Aquaclear. I'm a sucker for gimmicks

It'll all be run by an RKL as I had it already. The heater and UV/pump have their own GFCIs plugged into the RKL
And of course, everyone wants to see the prints my Dad made

Here's, from right to left, the QT, new water tank, and nothing else worth describing
