Well, luckily I was planning and thinking when I put the stand in. There is enough room that if I remove filters, etc... I can actually squeeze behind the tank (barely).
I tore it down by sides and took some closer shots. It is clearer, but the lighting just doesn't sit right. I think the atnic bulb is the problem, but I can't replace it yet (no money).
And yes, my fish are in the lower lefthand corner all freaking over a single algae wafer that the plec was finished with. LOL
This is the way I have done it, but unless you either full tape the entire outside edge (and I do mean the entire outside edge) or silicone it water gets inbetween the background and the back of the tank. Thus creating a mess and when you have the right amount of tape across the back you end up not being able to clear it and it can take days to clear.
Dude with such a big tank why go with just guppies. Seems like a waste of space to me. If I had a tank like that I would put a bunch of Discus or maybe a Arowana for awhile.