Blue Hayze & Bubblicious

[MegaOctane12]

Thanks very much funny you say that because this is the only plant that hat the problem with brown spots on leaves, and looking at your info its a lack of Magnesum, Iam using BIO-GROW liquid fert 20 ml with 5 litres of water PH is spot on soil PH is fine.

All the others look fine they are still on 18/6

What soil are you using along with that? 20ml with 5 litres sounds quite alot. Supposidly it should be 3ml maximum and that is with a fully matured plant, so I would cut down on that personally and give them 1/2ml per litre until your a few more weeks in.