i also did this, had the python hooked up and was filling up for water change, and forgot about it, i don't know how long it was... but anyways... 50gallons of water on the floor or more maybe. luckily i was on 1st floor of the apartment, unfortunately it flooded the living room, kitchen, hallway, and bedroom closest to the living room. also i was lucky there was false walls so the sheetrock did not warp. i wetdry vac'd for 3 days and had like 10 fans going and a dehumidifier going for a week.. it took a long time to get the scent out.