3 times a week and 1 with jsut water
thank you for ur help so when u say feed them the water is there a day space inberweetn this feed wait day water or just water feed water feed?
Its gonna be nute burn for sure as above and the main culprit would be the pk 13/14 that your using. At a "guess" they look about 3 maybe almost 4 weeks into flower. Cut out the 13/14 for now completely and water - feed - water - feed. As above, the yellow is not gonna go away on current leaves but if things are well then new growth will look ok. Everything looks generally healthy though from the pics.
THCtalk.com Disclaimer - You must be over 18 years old to view/use this site .THCtalk.com does not encourage growing Cannabis or possessing Cannabis. Learning how to grow Cannabis instructions should be for educational purposes only. All Information contained in this web site is for: Historical reference, Scientific reference and Educational purposes only. Visitors to this website are advised against breaking the law as It is illegal to smoke, grow, or possess cannabis in the UK