hey doctapurp!
great looking grow so far! you plants are look great for their age, nice colour and healthy!
as people have said before me, you will most likely need to have some cal/mag on hand. from what i have read it seems to be a common-ish problem. I had some calcium deficiency right around the same age your plant are now. so i bought some growteck calmax and added only 1ml per 1.5 litres or water (i water from bottles) and it fixed the problem straight away. but the affected leaves most likely wont recover so its good to catch it early.
you are looking for a rust coloured pigmentation on the leafs, and it commonly starts on the tips. (well it did for me anyway) i will attach some pictures.
i'm subbed an will be watching. i am thinking of getting some air-pots for next time so let me know how they go.
peace,
trustfullytasty
great looking grow so far! you plants are look great for their age, nice colour and healthy!
as people have said before me, you will most likely need to have some cal/mag on hand. from what i have read it seems to be a common-ish problem. I had some calcium deficiency right around the same age your plant are now. so i bought some growteck calmax and added only 1ml per 1.5 litres or water (i water from bottles) and it fixed the problem straight away. but the affected leaves most likely wont recover so its good to catch it early.
you are looking for a rust coloured pigmentation on the leafs, and it commonly starts on the tips. (well it did for me anyway) i will attach some pictures.
i'm subbed an will be watching. i am thinking of getting some air-pots for next time so let me know how they go.
peace,
trustfullytasty
I'll post pics soon
to keep ya' going, Bro. Nice looking gals! 

