I keep 2 canisters or 2 methods of filtration on every tank. I rotate maintenance. In the summer I blast the canister in my driveway with cold water from the hose. In winter I blast my canisters with hot water from the shower.
I don't feel like I personally can adequately clean them in a bucket of tank water.
I'm no bioligist but it's my educated guess that not 100% of the beneficial bacteria is killed in my psychotic rampage with chlorinated tap water. Most of the bacteria dies, probably the weaker organisms, leaving the super mean bacteria to repopulate. The filter should bounce back quick. . And im not so worried nitrates because I removed the detritus and biofilm efficiently.
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right...same as my water buffalo theory in college...it didn't matter how many brain cells I killed with I.C. Light...because I was killing the slow, sickly ones. The ones left were the elite of the brain cell community.