If you think water is an issue, melt snow. I get a 50% yield, 6 gallon bucket of packed snow melts to 3 gallons at room temp in 36 hours. Been working great for me and they love it. I think you overwatered, she locked then you fried the leaves with magnesium etc. i don’t think ocean forest has mycorrhizae, happy frog does but ocean forest is all nutes.