Here's a really good link to plant problems. Check it out and see if you can find the problem....has lots of pics and good info.

International Cannagraphic Magazine Forums - The Complete guide to Sick Plants,pH, and Pest troubles!

good luck.
Weedhound Reviewed by Weedhound on . NEED HELP...Plants very yellow Well, my one plant in the top right corner of room is in week 5 of flowering...others are in week 2...having some real problems in the last week...plants yellowing and crisping on the ends of the leaf...first i thought the lamp was too close which was wrong...gave it a light dose biobizz biobloom, cal mag and liquid karma on sat...plants got worse...any ideas...think it may be ph b/c i had a low ph problem during my veg cycle and added some earthjuice up...did the same today hoping it Rating: 5