Hey Paul, I'm jumping directly on your thread, as you requested, to chat about water sterilization with everyone.
For the many fans of Paul out there, I want to start by sharing that Paul and I go back to around 2011 as long time friends. I work in the IT industry and he's called me many times for help with his computer and video camera setup. I've called him several times myself as well for help so I could really understand his ways. He's talked to me in great detail about topics I was fascinated with. For instance, how he created his unique algae troft scrubber using his display lighting, how he made his algae scrubber ultra easy to maintain using window screening and cement, how to grows blackworms using a 10 gallon tank and newspaper, and many more topics, some of which I have l0ng since forgotten. Paul even sent me one of his mojano wands free of charge when he started selling them ( worked great!). I am a Paul B fan and we are friends first.
My private nudge to Paul was that I wish he would not downplay his long term success as having nothing to do with his long term use of a sterilizer running 24/7 in his tank. I know that people flock to Paul because of his witty humor and their desire to have an immune tank so I really feel like water sterilization needs more discussion since he uses it.
I'm a big reader and I truly enjoy the science of this hobby. I don't want to push my opinion on anyone but I would like to share what Dr. John Hawke, a leader in the commercial aquaculture industry, says about the benefits of water sterilization. If you watch the following video below the screen shot, Dr. Hawke discusses water sterilization at 35:18 minutes in. His comments are to the point because water sterilization is considered a must have in commercial aquaculture. If the facility is indoors and can run sterilization, it is done as a standard practice. Commercial aquaculture facilities that cannot run water sterilization consistently experience higher mortality rates. Facilities that run water sterilization consistently experience lower mortality rate. The benefits of water sterilization are well established.
Hopefully my little part in this conversation will help at least a few people who have struggled with diseased fish in the past and are looking for a solution. I consider Paul's methods sound and I don't think he hides anything. Please consider water sterilization for your display tank, just as Paul does. As Neil DeGrasse Tyson put it... I will never require you to believe anything. It will only ever be about how compelling the evidence is to you.
Fast forward to 35:18 or watch the whole video if you like.