Roots a white a healthy, should I raise water temp a bit? Ambient temp reaches 80° from time to time.
Roots look healthy and full.
No. if you're dialed in at these temps it should be fine. A couple degrees more at the roots maybe. But no. Its good. Just on the cool side. They're looking pretty good. But with the CO2 it might help to go a bit higher is all.
Will excessive CO2 cause these issues if the heat isn’t higher?
It usually won't. But the food, light, atmosphere ratio is better in balance. And the root and canopy differential might cause slightly weird leaves. The CO2 won't do its thing without the extra light and heat. Water at 68f would hold maximum oxygen. And canopy in the 77 to 81 range would be ideal. But there are charts. I just can't off the top of my head think of one. It gives you temperature adjustments suitable to the 1200 ppm CO2. So you get maximum benefit. I know someone here knows the chart I'm talking about. And I guess water does absord CO2 and can in theory cause acidity. But I don't think it's an issue small scale.
I was using FloraTrio first micro grow and bloom
Ill let the guys familiar with sterile systems help ya. I shouldnt be telling sterile people to raise their temps lol. . .I dont know how to troubleshoot pythium in sterile systems. I just pour in my hydroguard and run 72 temps no chiller ;)
I sterilize with hydrogen peroxide. It's simple and forgiving. And cheap. I add 60 ml per pale. If the shelf strength. Horticultural peroxide is 35%. But if you splash in your eye you're blind. It's super cheap. Very dangerous on skin and eyes. But yes the pool shock could cause an issue. Bleach and peroxide don't mix. One or the other. Have to gas off most of the chlorine based stuff before using peroxide. But it's not looking bad. So it could be just fine. Not sure if a compound would accumulate or not with pool shock.
Is the shock necessary if I’m running a chiller then? Realistically shock is to prevent bacteria but keeping my water temp at 66° should so the same no?
I mean the temperature being 66 f allows for a greater amount of dissolved oxygen. So anaerobic bacteria doesn't colonize. But peroxide is cheap insurance. Technically you're good and shouldn't need sterilizing agents. But a little peroxide keeps root rot away. It would take a few days for your shock to gas off. Then you could switch. But it's a personal choice. Maybe the pool shock works just fine. You have in theory ideal root O2 levels. And supplemental CO2. So the plants working hard. Will quickly show deficiency if they occur. There is a formula for temperature and your CO2 levels. To maximize your value on the CO2. Right now your totally in the safe zone. And you might see explosive growth with just higher canopy temperatures.
