So I have a 25 gallon moderately stocked and moderately planted tank. I keep nitrates at 20ppm phosphates at 1ppm. I dose flourish comp twice weekly at the recommended dose. Lighting is dual t5ho 31 watts per bulb. Tank is co2 injected and maintained at roughly 30ppm with a drop checker. Plants are growing like crazy and things are going well considering this is my first planted tank. I have noticed that there is some interveinal chlorosis on some of the younger leaves. I do use equilibrium at water changes because we have really soft water with almost no calcium or magnesium. Is this an iron deficiency or something else? Manganese deficiency? I can't quite pinpoint which nutrient I'm short on. Any suggestions?