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Nope it's in the pond and the UV is under the planted pot. That blue crate is filled with filter material that acts as a mechanical and a biological. There are 6 pieces and I remove and replace 2 a month.
It works by forcing the water through the filters and then up a hose and through the UV, it leaves the UV via an underground pipe and pops out on the other end of the pond. I have installed a DIY waterfall since the pic was taken, it's in the second and third pic but not the first.
Pond is 7 X 3 X 3