Indoor Yellow leaves

[Morning_dew]

Greetings,

Plants are Dutch Passion Blue Cheese, started in 4 gal kitty litter buckets with Fox Farm "brown bag" 30 days into the grow I started giving them half the recommended amount of fox farm nutrients, for 2 weeks then flushed. Been giving them Bud candy 1tsp per gal of water.
Tent is 4'x2' 5 feet high, Light is as high as it can go I have been watering every 3 days. using a 240 watt LED. They seem like they want to bud.
Any input would be great.

 

[namvet25]

http://www.growweedeasy.com/sites/g...phosphorus-deficiency-cannabis.jpg?1288237103


Looks like a combination of phos and nitrogen def.Have you checked your ph?Also you should be using cal/mag.

 

[Morning_dew]

using cal/mag Could you recommend a product to use. My water is at 6.7 when I tested.