If that man cleaning the tank weighs 160-180lbs wouldn't he displace just as much water in the tank? Does the Dr. remove a lot of water prior to having the worlds biggest mag float go in?
They have about a 400 gal sump in a room behind .It will contain a lot of overflow .Also the tank is probably about a foot taller than the water level/overflows.They actually have another pic with 2 guys in it.It has 9 400 watt mh,i forget how much actinic and 2 3/4 h.p. return pumps.There is a Sohal in there about 10-12 inches.
Pretty nice.The guy that set it up owns Fish Pros says they have billed about $97k on it so far.
Ron