I apologize for not reading through the entire 23 pages (so far). Maybe, if there are such posts in this thread, someone will point me to the page that talks about how to get rid of BBA, not what causes it.
The topic of getting rid of BBA (not what causes it) has been of interest to me for some years. I have found a solution that works every time. BBA disintegrates in a very short time - from 3 hours to 20-30 days. Guaranteed. BBA is by far not the worst algae a tank can get, not even close, but for the modern enthusiasts the planted tank hobby is a fog of commercial and personal biases so BBA is considered pretty much a plague 😀
Anyway - how do you get rid of BBA? Or rather - How do you never get BBA? There are no chemicals or anything to add. It is not a question of low or high CO2 and no, not a question of fertilizers. Yes, it is a question of microbiology. Which species of microorganisms is not important because what is more important is the answer to the question "How do I setup the tank so the proper microorganisms establish themselves?". I like to call that "properly established planted tank". Knowing exactly what kinds of microorganisms you need to have a BBA-free tank you will still have to answer the same question. And honestly, it is easier to answer that question than to figure out which microorganisms are crucial. Note that I avoid the word "bacteria" because that is not the end of the story.
So, yes I do have a way to setup a "properly established planted tank". It's extremely simple and logical. I'm not the only one that can do that. No, I won't share it on a plate. In America we like to stand above the crowd, be #1, champions, leaders, whatever to make ourselves feel important so here I am if you want to take it that way 😀. And yes, I do have pictures showing BBA disintegrating in a matter of hours or weeks but this post comes across as cocky to the average reader as it is so enough of it. If anything - it'd be wise to start discussing ways to properly setup and establish a planted tank. Otherwise this will be the best most informative thread on what causes BBA but not how to never get BBA. Like many others in the last 15 years. Meaning that it would be wise to get away from the "modern" "methods" of doing it.
If my post makes you feel a little annoyed ignore it. But I seldom write my posts hollow like most people do. Here it is - a minute hint to a path you must not overlook: A good place to start looking for information - flowgrow.de. You find what is of relevance to this BBA thread. No, all the information is not there black on white but that's the best starting point on the internet full of misleading information. And if you read Russian I'd suggest another link, but hey, why would one read something in yet another language😀
Good luck.
--Nikolay