Watermelon auto & northern light auto

Everything is back on track, the leaves are starting to turn purple on the northern light and very little on the watermelon . I'll be checking the trichomes this week and hopefully be able to harvest at the end of the week. I do not feed the plants at all besides watering them with water from fish tanks. Made some live soil and added horse manure, homemade bone meal from fish bones, compost from vegetable scraps and black soldier fly frass. I do not use chemicals on any of my grows.