How much algae do you need in you're rez to have an issue? Does algae and root rot go together?? This just happened to me I use the 10 gallon totes that you get at home depot. I've had them for at least 4-5 years and never had this problem can they go bad after a while??if it's algae, it's usually a light issue
have you tried anything other than uc roots?
what medium are you using?
I get a little brown sludge in my cloner that sometimes slows the cuts from rooting... Is there a cloner out there that doesn't have the rubber insert's where the stem goes in?? It almost seems like there is a tiny crack for light to get into all these inserts.In my experience it's always light leaks that cause sludge. The tiniest bit of light in the rez and brown alge grows. I average 10oz. (dry) Per plant in my hydro system.
i use panda film to cover up my netpots with just a hole for the stem.your net pots may be your problem
Uv filter? I'll have to look this up on Amazon lolAs for your algae problem, your net pots may be your problem. The net pots I use are solid on the sides for the top couple inches. Your net pots are net all the way up the sides. This makes it hard for the clay pellets to block all light.
As mentioned before, white PVC can pass light if intense enough. Always a good idea to light proof PVC pipe.
If using RO water, add a UV filter to kill any algae in your source water.