They all have their opinions and insight. I have watched a lot of their videos and they all have success with their ways most of the time. Honestly, to each their own. I do all my own work on my several tanks that I have owned, serviced, and cared for and I have done a lot of trial and error with products. I have my own experience and insight that I even swear by. I have also worked at a local fish store and have seen and experienced a lot. its hard to explain to people at times and recommend to them what to do when a lot of people think they are experts. Defeats the purpose of them asking me for advice lol. But their videos are all informative and make their point. I say to everyone go out, do what you want, and learn from your trial and errors.