ADVICE

You may want to back off a little on the nutes, but if the plant is looking healthy I wouldn't worry too much. Do you check ph at all? I don't unless there's a definite problem, but I'm kinda in the minority there.

I think i overfed them with calmag..that's only thing i have used and molasses. Reading and surfing online it's mostly nute burn like you mentioned . Plus the branches are very reddish in colour. Started 12/12 on januray 1st. Making me scared . Here are few pics. What do you suggest? Thanks

Is it the branches themselves, or the petioles? The stems that join the leaves to the stalk?

The stem that joins the leaves to stalk.

Here are the pics . And there's not a yellow leaf on both plants.

Ringo's Gift
Ringo’s Gift is a high-CBD strain that crosses Harle-Tsu and ACDC. It is named for the late Lawrence Ringo, a cannabis activist and CBD pioneer. Ringo’s Gift comes in several different phenotypes and ratios. The first of which is a “one-for-one” strain, meaning it has an equal ratio of CBD to THC, but Ringo's Gift has seen ratios as steep at 24:1 CBD/THC. This strain has become a favorite in the cannabis clubs of Barcelona, providing a mellow mix of cerebral activity and soothing, full-body relaxation without the “couch lock” effect.

Suzy Q is a high-CBD, low-THC strain with a piney taste that helps treat symptoms with little to no euphoric high. This hybrid is great for daytime use or by those who want to relieve chronic pain, nausea, arthritis, muscle spasms, and anxiety without intoxicating effects.
Hope this helps.. Cheers!