What nutes you using? If they dont have any magnesium may have to add some. I have one nirvana ice and I have seem some of the same discoloration at the end of the leaves on the bottom sets but nothing as prevelent as i see on your plants.
Some guy down da road from me, 10-12 houses, just set his place on fire and got busted when da firemen rescued him and his family and saw his partially burnt up op.
I bet the lack of N in the soil is fooling the plant into budding earlier. I have a plant that just starting to flower3-4 weeks after all my other ones. I transplanted it late in a soil mix with a good amount of time release fert heavy in N. I used a different more neautral soil on my other 4...
I started all my outdoor stuff this year inside under 2 4ft t5s. I had ten plants growing and i took 30 clones off about 6 plants before i put my plants outside. All the plants i took clippings off of recovered very well under the t5s
First outdoor grow...plants in ground in soil mix. Gh maxibloom used every 7 days of flowering cycle. pics oMidnight kush and critical jack. Lemme know if they lookin ok.
The arc tube is where the electricity reacts with whatever the heck is in mh bulds to make light. I also notice that there is a kelvin difference between the two.