Yellow leaves

On a side note 60rh is just asking for trouble.

This is NOT a nitrogen deficiency at all. It's probably a nitrogen TOXICITY which is causing a calcium lock out - but here's the thing... we can look at pictures and GUESS or we can look at information and have a reasonable degree of certainty about what we're advising... since you don't have a diary for this grow, all you're going to do is get guesses. And looking at pictures of leaf problems on the web and trying to compare them to what your leaves look like is like trying to use paper strips and comparing them to a printed chart to figure out PH... impossible. We don't know WHAT you're growing, what the conditions are, how old they are, what nutes you're giving in what amounts... we. don't. know. anything. Do yourself a favor - and do US a favor... start a diary so that when problems/concerns/questions come up, we'll have the necessary information to help you!! Sorry to be so forceful... but seriously, we WANT to help - our hands are tied!

Etwas mehr N.

https://www.growweedeasy.com/cannabis-symptoms-pictures

High Margrowtin, This is clearly a Nitrogen dificeny. You give the right pH for aeroponics. And I would say that your EC is too low for this stage. But the N dificeny is the only dificeny I can spot on your pictures. Other than that they look healthy. So I do not know what nutritions you use. Just check the bottles for the N-P-K ratio and use slightly more of the nutrition with a high N value. Don't overdo this, you can always up your EC to 1.2 and keep measuring the EC the day after. When the EC stays stable then you are on the right amount. Happy growing!