Originally Posted by p0opstlnksal0t
I gotcha. I'm showing lockout overfeeding symptoms on my room right now. I flushed with 300ppm and I took my feedings from every 5 hours back to every 12 hours I don't think my root structures are big enough to support the 5 feedings per day yet.
You can't really overwater / overfeed coco. Even when you over do it before plants have established their roots, the only consequence will be slower root development.
Think of it this way - If you're doing DTW coco right you're basically using the coco to hold the liquid and the roots upright. That's it. You could grow the plants directly in 100% nutrient solution if you wanted to. It wouldn't cause burning or 'lockout' or anything like that.
Until the end of flower you shouldn't ever 'flush' with anything other than normal full strength nutrient solution.