LOL. I used to live in Iowa, creston
I had NO IDEA at all about sumps until my last build. I bought pre made of course but still had no idea what I was doing. hehe Theres a learning curve for sure but it's actually not as hard as I thought.
You can check out the DIY forum and see what other people do. I think you can silicone glass/acrylic and make chambers in the 20L. Then you just add what you want to the sump. Bet that sounds easier than it is, but alot of people do it so it can't be that bad.
Glad youre pleased with the suggestions, you got a great deal on the ro
unit and the lights are top notch. What more could you ask for?