I’ve been growing since I was a teenager, and I’ve come along way since then. Haha.
I have literally everything I need to get going but a answer to the water temp *potential* problem.
When I didn't use a chiller for one system for a couple of months I used UC roots with no problem and my water temp was 75-76 max before lights out(15 gallon system 70l/min air pump). just because it worked for me doesnt mean i would recommend it.
Im just confused on why you would risk root rot, when you could avoid it with a few frozen 2Liter bottles or a used water chiller. Its alot of variables that can cause root rot. In that southern ag post one of the members water source was the cause of his root rot, so he had to eventually change his water source. If we tell you that we can do it and it doesn't work for you how it worked for us you going to be looking at us side ways.