So sitting here thinking about power failure. This got me to thinking if you run a wet/dry as your main filter, and the return pump dies 5 minutes after you leave for work what happens.
Then I realized all hell would break loose, your bio media would dry up and all the BB would die. You come home 8 hours later and say oh dang it and rush go get a new pump and hook it up. now your tank has to go through a medium cycle because you lost 80% of your BB and, now you could be pumping poison back into your tank from the dead BB.
Then I realized all hell would break loose, your bio media would dry up and all the BB would die. You come home 8 hours later and say oh dang it and rush go get a new pump and hook it up. now your tank has to go through a medium cycle because you lost 80% of your BB and, now you could be pumping poison back into your tank from the dead BB.