When it rains... I was breaking down my 30g to re-weld the seams. I got all the fish out and most of the water, then had an emergency. The canister filter has been sitting for 3 days w/o running. Is the media toast? I have heard that it gets toxic after 6 hours? I hate to throw all that away, but don't want to hurt any critters. Should I boil it? Just run it in tank water only? If so, how long? I understand the nitrogen cycle, just not sure what having the biological material sitting dormant will do to it. Any insight appreciated.