Cool tank! Can you share with us how you are running this please? Lighting? Skimming? Filtration? Etc?
I had to do mods, which in my opinion, are the fun part. I enjoy working in those things and see them as cool little projects. I removed the HOB and light bracket(weak leds which are bad for anything you plan on keeping). Eshops makes a nano overflow box that fits almost perfectly inside the plastic tower that before housed the HOB filter.
You must remove with a sharp blade the top glass from the tank in order to be able to have the overflow box work properly. I ran a 1/2" clear hose from the overflow box down to a sump(5 gal cube i had underneath). I made a hole through the base of the plastic frame that hold the tank on the back and through the top of the stand the tank was on so the hose was completely hidden, like the tank had never been modded.
In the sump, i ran a small skimmer and phosphate reactor. On the tank top, since i had removed the glass that holds the "light box", i got two glass strips that were placed exactly where the light box sits so it had support without the top glass. I also did some DIY led combo of whites and blues.
Here are some pics of the mods:
The overflow box is already installed, and the change is minimal to the sharp tank appearance which is the nicest aspect of the Edge IMO
I glued small pieces of rock to hide the box, and scaped the tank in a way so the the rocks formed a center pillar following the box all the way down to look natural
Sump with filtration
Light mods. As you can see, i attached the led module with screws through the metalic mesh that is on the top if the box. Also since i wanted the light spread to reach farther thowards the front glass, i bought an extra top box, and had a glass shop cut one of the sides so both boxes would meet looking like a longer box.