You get one tank, you get everything (food, the tank, water changes, electricity, etc.) for free, what is the tank and what would you guys go for? I'd go for a 10,000 gallon tank for a tank with 6 or so silver arowana, some assorted oscars, a ripsaw catfish, a few temensis, some stingrays, and some bichirs, I would get an arapaima, green terror, gar, and dovii in there too but I doubt those would get along with everything else, what would be your guys dream tank?