Hello. I have this white crust forming on most of my indoor plants and I'm looking for advice on handing this (if it's bad). I suspect I'm over fertilising/watering. It's happening uniformly on most of my peppers and tomatoes.
These are about 7 weeks old, potted up around 1-2 weeks ago. The soil mix is compost, vermiculite, perlite, vermicompost, blood fish & bone, and Epsom salts. I bottom water roughly every 4-5 days. I fertilised these for the first time a few days ago then these crystals formed (with 7-3-5 fert at recommend concentration). The plants are all under a good fan so airflow is good too.
Looking for advice on if I need to do anything about this!
by Just_Winton