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My understanding of cotyledons is that they feed the plant during a time when it does not feed from soil/nutes. Does ph matter when the plant is feeding from the cotyledons? With the wrong ph, can you cause nutrient lockout from the cotyledons? I grow my plants in coir with hydro nutes. I have not checked ph when watering the babies with plain water from the tap. However, I have had slower growth during this period and I'm wondering if ignoring ph is creating sub-optimum conditions. My tap water is higher ph than pot plants want.