SOrry - I meant to reply to you directly - instead of Sixty - the problem with your logic - and your thread you posted above - is that *unless I missed it* - there is no long-term evidence. It's easy to clean a tank and say look here is what it looked like on day 0 and here is what it looked like on day 2 after the cleaning. To me that is next to worthless information - of course if you clean something - its clean lol. The question (and maybe you have the info) - is what percent of those tanks look the same after a year or 2? how did they get the way they were in the first place? I think Sixty is trying to figure out a method to prevent the problem in the first place?you mean they might not trust you to work their systems? you wouldn't have any trust issues unless it was your tank needing help
it seems a work thread with repeating outcomes using other people's systems is the best way to define knowledge vs luck