What is this? Its only on the top cola leaves. It's on about 7 or 8 leaves whitish/yellowish spots couldn't get any closer but yellow spots closest to the light. Have been on the plant for about 2 weeks.
It's a Nutrient Burn ! The burnt appearance won’t go away on the leaves that were already affected. As it seems you are using non-organic plant food. Use TDS meter to measure the levels of nutrients .