So, decided to add a sump to the Red Sea. Not a lot of space underneath but found the Trigger 30 sump to fit just right.
IMG_0017 by Juan, on Flickr
IMG_0018 by Juan, on Flickr
Now all I have left is to get a skimmer and a return pump. Looking at the Reef Octo Varios-4 DC return pump at the moment, but open for suggestions.