Quote Originally Posted by WashougalWonder
Yes look at that link, it may give you ideas. d

From the form I see nothing that stands out. Possibly simply a flush....

How big are the plants in 4 gal containers? Chance they could be root bound?

Get a reflector for the bulb, you are wasting 50% of your light

So to summarize,itI could be magnesium/calcium def, nute lockout, or root bound. Mag/cal def is pretty noticeable and does cause central leaf issues as you describe. Regardless a moderate flush could help. Don't wash out all the buffers
Sorry the pic is poor but you can just see it , some leaves are like that and worse, and some have spots that are the same colour
budbudding Reviewed by budbudding on . Rusty looking leave's ???? Hi I have been trying to find out why some of my leave's have rusty looking marks on the leave's but cant seem to find anything, Some have spots and some have big patches down the centre of the leaf , Would anyone know anything about this , ??? Rating: 5