goingrey
Well-known member
I'll stick to an EC somewhere around 1.6 and see how that goes. Do you usually use full strength nutrients right off the bat, or do you ramp up to it in the first few weeks of growth?
It's best to start off light and then slowly work your way up while keeping a keen eye on the plants. A good rule of thumb is to start with a "half strength" solution.
Not sure how sensible it is to compare EC levels as the right level will depend on the fertilizer, the water, the phenotype, and environmental factors. But... if you look at pages 8-9 of this thread, you will see that MIGreenman found 1.7 to be too hot even in mid-flower. Based on that I would say that 1.6 is way too much for young plants.