Hi guys,Sorry for posting, had a read through the stickies and I'm still not sure what the problem is. A couple of my plants have developed this on the lower leaves. Plants are 8 days old and on about 250ppm:
Only noticed it this morning but had to go out for the day. Started off with the leaves going pale and has got worse, they are dry/brittle around the affected areas but the rest of the leaves seem/feel fine.Any help is greatly appreciated