I've never used Eshopps so I couldn't tell you but it does look like a good sized skimmer.Right now I have the Eshopps pro series 200? Thoughts or is there another you recommend?
As far as the splitter goes on the return, you don't have to use one of course it's just that the return is a single shot and blows straight out so you end up with a bald spot at the front of the tank. Of course your return is adjustable so you may not need it if you turn it down, or if you go bare bottom. If you do use a splitter you will need a loc line adapter. I bought this one.
https://vividcreativeaquatics.com/s...-line-adapter-25mm-slip-fit-to-12in-loc-line/
and this splitter
https://www.bulkreefsupply.com/loc-line-y-fitting.html the 1/2 inch then added two of these. https://www.bulkreefsupply.com/loc-line-modular-hose-segments.html
I hope this helps you and anyone else looking