Bubble-bucket brown spots on lower leaves

Can anyone help? Its week two and small browns spots are spreading over the lower leaves of the plant, tips going brown and slightly curling up, pale in colour but still green. ph is 6 and im using GH flora series following prescribed feeding schedule. will post pics soon.

swazfarm said:

Can anyone help? Its week two and small browns spots are spreading over the lower leaves of the plant, tips going brown and slightly curling up, pale in colour but still green. ph is 6 and im using GH flora series following prescribed feeding schedule. will post pics soon.

Click to expand...

how close are your lights it sounds like light burn remember no closer than 2 inches and no more than 5 inches

Here the pics, still using floro 2 inches away and upper leaves are healthy dont think thats the problem.

Any ideas anyone? any relevant information I left out?

its just heat burn it also looks like you have an overwatering problem i had the same thing happen early on in my grow

Check ph. Because magnessium cant be absorbed by the plant with a ph below 5.5. Potassium can also be an issue

definitely not heat burn temp at plant was 23C bout 2 inches from floro, spots still very slowly spreading with the ones in the pics dead now and only one other pair of leaves affeted so far. steady growth, changed water a few days ago to get rid of white or translucent suspension (algae or bacteria). Problem seeme to have slowed.