Do Sweet Dos 1st Grow

No changes in their watering/nutrient schedule. Girls look to both be doing extremely well and should hit flower running. I had planned to start flower at the end of this week but I spoke with a few experienced growers and they suggested I veg the smaller 2 plants a little longer so we will give it another week before the 12/12 flip. I had noticed a little bit of tip burning on 2 of the plants so I plan to add a 2nd plain watering between nutrient feedings in hopes that will help. I used a 1/2 recommended dosage most recently. Another small thing I noticed is that there is a mosaic pattern on some of the leaves and upon a little research I found something called Tobacco Mosaic Virus (TMV) which looks a lot like it, I will attach a few pictures of what I’m talking about and maybe someone else has another cause.