Possible potassium deficiency

As seen in the pictures its looking a bit sickly. It looks like a potassium deficiency but I’m still vegging. Growth has defiantly been slow down. I’m growing in an organic living soil so I think I need to adjust my recipe for next time. Already fed them compost tea and now I’m making a banana peel tea to hopefully correct the issue. If I’m having problems with K now will it make it though flowering? Also how can I correct this while still keeping my grow organic? Maybe a top dressing of something?

Dont see much potassium deficiency in plants that age growing in soil. Looks more like nure burn to me. What are you feeding with? I'd check the soil is draining well too.

Its a living soil so im not feeding it anything. I gave it a compost tea and foliar fed with magnesium a couple times thats it. Also pretty sure I let my soil cook long enough so idk.

They look hungry, even your cover crop looks hungry. Do you have any Neptune's Harvest Fish and Seaweed. That's good stuff and will give the soil a boost. If that didn't help, I would check the pH.