Water temps and sterility are going to be very important factors going forward. In any DWC/RDWC/UC system I run I forgo the use of beneficials (mycorrhizae, bacteria, basically any living organism) in exchange for running hypochlorous acid through the system. It will not only keep the system sterile and easier to clean after every run, but will allow you to get away with higher temp fluctuations without having to worry about pythium. Pumping the O2 in there as much as you can is always a good thing. I still have many of my original Deep Water Innovation OS-5 diffusers. They're extremely durable, easy to clean and create very fine air bubbles without being considered a "microbubbler." I've also found mineral based products to work much better than their "organic" counterparts due to the aforementioned potential bacterial issues plus there's much less residual gunk to clean both during your cycle and after harvest
