Quote Originally Posted by Aeon View Post
I recommend Ferka Balance K.
Melting, holes, yellow are symptoms of N and K deficiency.

Nitrogen
Yellowish old leaves, melting
· Potassium nitrate
· Ammonia/Ammonium
· Nitrites from bacteria
· Nitrates from bacteria
· Ethylenediaminetetraacetic acid

Potassium
Holes in old leaves, yellowing and withering tips or edges
· Potassium nitrate
· Potassium sulphate
My cryptos are suffering the same fate.. the leaves initially grew well, and then holes started to appear in the middle of leaves. new leaves melt after a while, is this potassium deficiency?