VWRC,
A couple of people have noted this flowerhorn seems to be a unique one so far. (S)He has a slimmer profile than most. There is some speculation the two fish used to create this hybrid may not be *as* aggressive, though I will definitely keep my eye out for too much aggression. The great thing about an 8' tank is, if (s)he does get too fiesty, I will just wall him/her off with a divider. The flowerhorn was the last added, so we will see long term.
To that end, the flowerhorn is coming out of it's shell. It has found a corner of the tank to "own"

and it is shooing everyone out of it's corner as it sees fit.
The blood parrot and the flowerhorn have more heated confrontations so far. The oscars don't care what they other two, they just look at them like "whatever"
no scars, no wounds so far.
As far as the tank you showed me. He has already contacted me. I too am worried about the stand, and I don't care for how much (12" of length) of space is being wasted by the overflow. In fact, I don't want overflow. I want 100% tank space for the fish, and I will use typical canister filters.
Cheers,
J