Yellowing leaves

Some observations over the last few days…

1) Root growth has increased dramatically.
2) Quite a few plants are exhibiting a disturbing behavior – older leaves are yellowing and dying off. Since the plants are growing at a fairly good clip, I can only assume that maybe there is now a nutrient deficiency. Yesterday, I sprayed a very very dilute mixture of ‘Miracid’ on most of my plants and to specific pots added some root tabs. ADA Iron Bottom and in some cases Seachem Flourish tabs. Hopefully I didn’t over do it.