Yellow and brown spots week 2 of flower

Hey y’all I’ve got 2 blackberry gum fem. Starting week 2 of flower today. Peat moss, topsoil, potting soil mix, perlite, vermiculite. Outdoor container. watering with diluted Compost tea every 3 or 4 days with well water. and the lower leaves are yellowed and getting spotty. Was only bigger fan leaves now smaller leaves at the bud sites on bottom![IMG_20200821_183857|375x500](upload://r6yK0ZZhHVaylI2