bronze spots

Does anyone know what this is? Growing info: Medium: 40% Fox Farm Ocean Forest Soil 20% Rice hulls (Perlite substitute) 10% Humic Acid 10% Dolomite lime 10% Earth Worm Castings 10% Azomite Soil ph 7.12 / Water between 6.2 - 6.5ph (Well Water) This issue has been happening since she was a...

My plants are getting these spots on the older fan leaves. They start out as small red specks, then as they progress and multiply they turn necrotic. The stems on my plants are turning red as well, not just the petioles, but the center most veins of the leaves, and the steams on the nodal shoots...