Hi again,

Well i decided to get some epsom salts, becuase i had only watered the day before and they wont need watering for another few days i decided to folair feed. I got 1 gal of water and added half a teaspoon of epson salts to it and stired well. I then filled up my spray gun, it only holds 1 litre and then sprayed a fine mist over the plants, prob only like 200ml was actually used.

Next day there was some burning on the outer edges of the leaves, and i cant really see if it has worked to be honest. maybe i didnt do enough? See pics of the burning.

The yellow tips on new growth is much worse.

Not sure whats going on really? Ph is about 6.8