Thanks for the referral.
Right now I am just about done building my green anacondas cage. It's 10 feet long, 30" wide and 24" tall. And that is not including his 60"x30" water bowl(bath tub). I shall post pics once I am done.
I strongly recommend to anyone owning anacondas, to make sure they have a water bowl large enough for the snake to completely submerge in. But to me, that goes for all snakes.
Oh, and as for a filter.... I think its a waste of money. Since these snakes defecate in there water almost daily, my plan is just to use my shop vac and suck out the water/debris when needed, then fill it up with the hose. Also, I shall be heating my bath tub with an aquarium heater that will be in a 4" pvc pipe with holes drilled in it. (got that idea from another member on here)