Is this a deficiency?

CHECK ON BOTTOM OF YOUR LEAVES SEE IF YOU FIND ANY MICROSCOPIC BUGS, LOOKS LIKE THE START OF SPIDER MITES

Hey there don’t stress. The worst thing you can do when you’re not sure what’s wrong is to freak and start switching everything up. 1st is 1st what your seeing is nothing other than being a new grower and over watching the plants. I would say it’s prob slightly too much light. I would dial back the light 10 to 20% for a few days. Watch the leaves in the afternoon if there praying super hard then turn the light up 5% daily or so. If the plants keep praying super hard at mid afternoon they still want a little more light. Also get a PPFD meter will help you get exact light dialed in. Also only water plant when the soil is really dry and ops t start to show wilt signs. Plants bounce right back from underwater but take a week or longer to bounce back from over water. I would always check the run off water from what comes out the bottom the pot and make sure the ph level is the soil is where you want it at. Also anytime you’re not sure what the problem is. You should never assume it’s a defecency at 1st you can always add bites you can’t take them out the soil when you burn your plants so always side with caution with nutrients. Also never give a plant what a nutrients bottle says. Always start at 50% dose and see how plants react. Usually the darker the plant the less nutrients it needs. The lighter the leaves get the more nutrients it will need. Do not streee what you’re seeing on your plant dial back the light slightly and let it have a week or so where it’s getting a little bit less light. Plants like to get momentum going. Any and all stress will slow momentum sometimes a week of rest will make a plant start growing much quicker just like an athle

Not a deficiency, but slight burning from either a hot soil mix or you are over feeding them.........but without a diary.........

Hard to tell wouldn't like to say without more info or a diary.. its missing something but a nice compost tea would bring her around...

looks to be the begining of calcium deficiency. but like mouse said, it would be helpful to see what your putting in and what you arent

could be lock out. Need a diary and to know what you are feeding them