I've worked out that this bio soil
make is way too hot for the plants. Needs to be toned down alot. Seedlings don't do that well in it.
Pretty sure if it's the osmoscote releasing way to much nitrogen. Side fed cal and Mirco. Seems only when temperature rises above 28 the plants really burn from it and had huge issue with heat wave this week.
Went out without turning on the A/C and room temp spiked into high 30s. Some burnt leaves but I'm thinking she's going to be ok. I've got a better mix with more topsoil hopefully transplanting will fix her.