captiankush
- 31
- 8
Have you calibrated your meter lately? That could cause ph swings.
RO or Tap? Your air pump in the room? Running Co2?
How are the roots looking? Bright white and thick or are they having any "tint" to them. Typically those types of spikes in a system like that are indicating uptake issues and many times it's due to a bacterial infection (ie pythium). Bumps in pH without any rooting issues tend to indicate too much Potassium in the mix (phosphorus for pH down, potassium for pH up). If you're not running any live beneficial additives (mycorrhizae, bacteria, nematodes, etc) I'd recommend running a flush with pretty much any product with hypochlorous acid (UC Roots from Cultured Solutions, Watermax from Clean Grow, if you're confident in your measuring and mixing you can even use pool shock.) If you are running bennies, Hydroguard is safe for your good beneficials while helping eliminate the bad growth that is keeping the plant from being able to fully uptake the nutrients in the system.
5 ml per gallon and refresh every 3-4 days because it degrades over timeExcellent response, man.
I'm running sterile or trying to, all chem, gh 3 part lineup plus calmagic and armor si. The roots have a bit of a tan to them and are not as thick as I would expect at veg week 3. I think your pythium diagnosis to be correct.
I appreciate the advice on watermax and ordered some.
CK
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