I change the res once a week. No bad smell or slime. Ph is stable and doesn’t usually fluctuate except for the day after I change the res. But it’s a very small adjustment. I’ve been using the recommendation off the bottle for nutrient feedings but I’ll try to cut that in half and see how that...
This is my first rdwc grow and my lower leaves are turning or have turned yellow. Plants looked great yesterday. I use flora 3 part series. I ph to 5.7 and have a ppm reading of 666. My water temp is 68-72 and room temp is 74-76. I have looked for insects and there are none. Could this be a...