I have new babies that some of the tops are yellow and some are looking very good. Can't understand why this is happening. All are fed the same [1/4 strength of DNF sprayed 4 times a day, and flooded as well for about 5 minutes]. My other batch before that I did the same turned out great untill I found out both mothers were males. The mothers all look great except a little curling of the leaves on the side. The ph is 6.5. Thanks for the help.
Don't worry about it, its really common could be genetics or immature root system. My young plants often do this if the plants overall health looks good you will find they will grow just fine. Don't make the big mistake of adding loads of extra nutes. Keep an eye on them but you will find as they get bigger they will adjust just fine. You could try spraying with a weak solution of liquid seaweed. This helps nutrient uptake. If your system worked first time it should work again, I know when you see a couple of yellow leaves its worring but that plant looks OK to me. Keep a close eye on them but if there growing at a good rate and they don't start turning brown or getting a lot worse carry on as normal.
