Dwc how do I avoid root rot?

[420kush5900]

I use flora nova series with rockwool medium with a 5 gal bucket. what can i use with it to avoid root rot ? I'm in week 4 should I get any other gh supplements for dwc ?

 

[Bubblin]

Hydroguard or h2o2, one of those plus cool water temps.

 

[420kush5900]

Hydroguard or h2o2, one of those plus cool water temps.

Thanks