I was really into aquariums when i lived in the states like 15 years ago. Myself and my roomate had so many tanks that our apartment looked like a pet store. It was always a constant struggle to keep the fishies alive though but mostly through making dumb decisions like putting multiple aggressive fish in the same tank with non aggressive ones. Live and learn.
My roomate had a long tank like yours (although i think 125 is a higher volume) custom built into a bar. That was wild.
Looks like you got a good start and i love the spooky tree in the middle there, very cool. Any ideas what kind of fish you plan to put in there?
We brought in the goldfish, comets, and shubunkins that we had outside in our Koi pond. (Gave up on the Koi after two failed attempts last year). These did really well and I'm sure grew at least two inches over the summer. We now have 13 of them plus two 3" plecotomus (catfish type) swimming about. I'll post a pic likely tomorrow.