Nope - no way to mount from above. It has to sit on the sump/fuge.
Here's a pic. Fuge is way on YOUR left side of the pic. Same chamber as the Phosban reactor. 12" deep X 16" wide. There's tons of tubing running through here now (this pic is from the morning before I did the plumbing) - that's why there's no room for a clamp-on light.
There's a UV sterilizer on the shelf above the fuge - it feeds the fuge chamber (as does the Phosban reactor)
