Yellowing leaves

I’d suggest perhaps changing your nutes altogether. There looks like there’s one or more deficiencies . So you have 2 choices identify which deficiency your plant is showing using the symptoms of the plants then purchase supplementary products to remedy the issue or go with a another brand that’s more “complete”. Also how’s your wet-dry cycle that greatly affects the vigor of the plants growth as well as greatly controls fungal gnats . Fungus gnats & soggy anaerobic root zones spell lead to root rot & that’s trouble through and through .

could be nitrogen deficiency, but also something as simple as over watering..