Ya stop using that calmag pronto. That fox farms is hot. It means there's alot of nutrition already in the soil. You shouldn't plant seedlings in hot soil, nevermind feeding them things they don't need on top of it so just cut that out and why worry about distilled water? Is your tap water really high ppms? Do you have an accurate tds meter? Just water man with reg ol tap water. In a few weeks you'll notice the growth slow a bit (usually around 3-4 weeks) then you can begin feeding low ppm IF needed. I don't grow in fox farms too many issues with it.