[mdjlucan]

Will Epsom salts  cure this

[JayG]

It won't restore the colour to leaves already showing bleaching between the veins, and there's no easy way of finding out whether the plants are actually suffering from a magnesium deficiency.

Having said that, watering with a weak solution of Epsom salts won't do them any harm.

[mdjlucan]

Can I have a second opinion the picture I'm showing you is this let of iron sufficiency oh give that some Epsom salt thanks