5_5g_penninsula_reef

Wow, that is a lot of equipment for a small AIO - over half of the tank! Do you think you need all of that in a 5.5?

Overkill

Looks like an excuse to show off that cadd program. Waaaaaay overkill. UV sterilizer, really?

I want to see it built, but i agree very overkill, top notch cad work though.

I like your skills. IMO, if put all that effort I suggest you go bigger, much bigger. Otherwise keep it simple and do major weekly water changes.