Nutrients

K, so 1. There will be flakes in your bottles of nutrients that aren’t completely broken down, that’s why the say shake well, and 2. The flakes are in the nutrient or sitting on top of the soil? Or are they in the dirt? Regardless that had nothing to do with lock out. If they are sitting on top of the soil its just the leftover over powder/salts from the evaporated water/nute mix. It’s like spilling a cup of tap water and letting it dry up on its own, there’s going to be a white flakey/powder where the spill was from the contaminants/chemicals in the water