New Grower 2nd Grow Fast Bud#2 auto! Help

[samwise]

Hi im growing 3 Fast bud#2 autos in canna coco pro+ they didint do much growing between day 7 and day 21 really but have really taken off since day 21 one is doimg really well but the other 2 are a little smaller and have some dry curling leaves im using the canna grow chart ph is 5.8 and the runoff is 6.0-6.1 anybody out there have any idea why the leaves are feeling dry and curling down also have some brown rusty spots?? Any help would be much appreciated.

 

[namvet25]

cal-mag def.

 

[samwise]

If it is cal-mag def whats the best way to fix it ive flushed both with canna flush and 4ltrs of water each?? Many thanks

 

[SmashedByHashish]

http://www.generalhydroponics.com/blog/2009/06/23/general-organics-camg/

lookin good and learnin on the grow:smokebuds: