You'll hate that glass top. I tried one after I lost my 2nd fish from excessive jumping.
It kills gas exchange, and moisture /salt will build up on it, and pretty soon you won't be able to see through it - and of course all that stuff is "baked" on, cause you'll have lights right over it.
I'd look for, or build, a canopy. Mine looks awful, it was built for function, rather than form. Everythink looks much cleaner, you can hide all the wires, plumbing, etc.
180G build thread
180G All-glass with dual megaflows in a custom stand
AquaC EV-180 skimmer
250 pounds LR
160 pounds aragonite
Custom acrylic sump from GlassCages.com
2xPCX-40 return pumps
2x250MH 14K, 2x175MH 14K - PFO lighting, 2x65W PC
No-name 36W UV
Water General 125GPH RO/DI