No not 250 pounds of water 6 or 7 five gallons jugs. So that would be more like 280 pounds but not all at once just 8 pounds at a time. Wow you really do think of the glass half empty.
90% of the bb is in the filter media. Kep it wet in tank water. Don't waste your time with moving old water. I just did a move a week ago. I also add a couple drops of prime to the bucket with the fish to keep any ammonia neutralized.Ok- and should I bother cleaning the gravel in the process or is good bacteria found in there as well as in the filter?