leaves deficiency

Hey everyone, I’m new in here , not to sure how the forum thing works but can someone help me identify this problem and how do I fix it?

I'm at day 55 auto ultimate Dutch passion. 13ltr pots, all mix soil by bio bizz, nutes = Bio bizz nutes Grow, Bloom, Top max, Cal/Mag I've had a cal/mag deficiency for a week or two, it's got worse the last few days, even after feeding, last feed was 4 days ago, two litres of water 1.6ml...

Hi guys, This is my first grow; I've made lots of rookie errors along the way but have managed to make to Week 8 relatively unscathed until now. I've got two 12L pots growing outdoors. First one an "Alpujarrena" seems remarkably robust, with no real issues to date. The second, BCN Critical...

The first plant is what I’m worried about. Lemme know:) Week 1 with devils cream auto under 600 watt veg bulb in a 4x4x6 tent with fans and all that good stuff 3 out of the four are doing well from what I can tell, I’m using fox farm of soil, there trio later on, as well as cal mag and bud...

Well here am. Just starting. One plant is 3 weeks old the other is a week. They are in pro mix potting soil. No nutes yet. My super skunk photos are boomin but i a realizing i know not what i am doing with these auto girls. Anytips will be greatly appreciated. I love to learn. Happy to be part...

Hey guys one of my Northern lights are in week 4 of flower and the leaves are turning yellow and lime green. I've been feeding it similarly to my other plants and the other ones don't have a problem whatsoever.... I've been using drops to ph and they're around 6.5. Does anyone know what this is...