I see what he's saying only in the fact that his tank surely holds lots of bacteria but why use a canister filter if your just gonna kill what's in it when you clean it, plus all the ppl in his comments agreeing with him, frustrating.
I don't like rinsing in buckets though, I just use a python in the sink, then use the flow from the tank draining to rinse the media, squeeze the sponges and I'm done, no muck back onto the media.To be honest, I rarely, if ever, use tank water to clean media in all my time keeping aquariums. One of the reasons being that when I remove tank water into a bucket, it is usually full of everything I do not want in my tank. So washing my sponges in dirty water means I replace the dirt. Makes no sense. To me.
Having said that, my tanks are well established, mature and not overstocked.
A well set up tank with substrate, hardscape with/out plants has more than enough bacteria and what not to reseed that sponge (effectively) immediately. Rinsing filter media, such as ceramic rings/balls, in tap water may affect the outer most layer of bacteria but the ones in the pores should be fine unless you are soaking media in highly chlorinated tap water.
The only time I see this becoming an issue is when stock in tanks are bordering on the filtration being undersized. Beyond that, I do not think it matters much.
right but lots of noobs may only have one filter and an amateur set up, just worry about them more than anything.It's a matter of experience and fish keeping expertise, not a blanket rule.
For example, I use chlorinated tap water for hatching substrate fish eggs - angels, oscars, peacock bass etc. Not something that you would think works well but it does.
Cleaning a filter with chlorinated tap water removes lots of biofilm and sludge which is fine if there is sufficient biological filtration elsewhere.
poor mulesYeah, definitely not a one-size-fits-all hard and fast rule. Lots of variables come into play, especially the amount of surface area in the tank on substrate, decor, etc. which would affect how much of the tank's bacterial population would actually be in and on the biomedia. There's also a big difference in the amount of chlorination in municipal water as it comes from the tap, not only from one location to another but even in the same place on different days. Another factor would be how strenuous and how long the rinsing of the biomedia is done; is it a quick rinse and squeeze, or a prolonged soak and repeated squeezing until the water runs completely clear?
I wouldn't really worry about it too much in most cases, and frankly pay more attention to the temperature of the rinse water than I would to the chlorination. If I didn't have a slop sink nearby to my tanks, I'd likely do the rinse in a bucket of tank water simply because it would be very convenient to do so, not because I felt it was significantly safer. I think that I likely remove 75% of the sludge and biofilm in the first 15 seconds or so of rinsing and squeezing; I feel it's neither nor desirable to beat the biomedia like a rented mule until the water comes out looking gin clear.