I don't know how you can keep all those fish tanks, you must be rich, or rather you would be if you didn't keep so many fish tanks.
I have had many sizes of tanks over the years but only one at a time, and I spent a small fortune on every one of them. I hate skimmers, I feel your pain...I have high hopes that one in my new sump will do better.
Oh except the two 30g longs I had where the landlord would sneak in my apartment and steal my fish water...
You remember that story.