Bennies, in my opinion, are the best by far! To sterilize is to attempt to kill all microbial life both good and bad, and too keep them gone...this is hard enough, but then you have the fact that the good microbials break down the oh-so-annoying leaf tips getting torn off and dropping in your res into ready-to-use nutes for your plant, not to mention keeping it from wreaking havoc on your ph and feeding loads of bad bacteria (because the bennies keep the bad bacteria beaten down and in check). I've only had about five DWC grows, so I'm definitely not a veteran user like many other posters. But I have tried running sterile and it ended disastrously. I used to run Hydroguard, with great success, the stuff is a lifesaver. But I decided to try Great White and oh boy...it is even better. I mean honestly the results are astoundingly different, however, the Great White contains the same bacicullus strain as the Hydroguard does, as well as dozens or more other beneficial microbes like your Rhizos, and others I cannot pronounce lmao. I have no experience with benny tea, but putting your roots in some tea during a res change I would imagine would be pretty helpful to your plants. Sorry, I'm a motormouth, lmao.