Indoor Advice Needed--possible P and K deficiency

[ghostpeppa]

third grow here....Got three girls at day 42..... and two are showing what appears to be a P and K def..but not sure and not that sever, but wanna dial this in....

A few purple stems and some brown curled leaf tips on one Candy and the Bio D, the other Candy is clockwork.

Smells like a candy jar in there, lol....any advice is appreciated

Set Up:
2 Candy Kush and 1 Bio Diesel Mass
400 Watt HPS
4x2 grow area
carbon filter with can fan
OF soil
2 waters of Tiger and BB every other water since day 30
Cal Mag once at day 30

attached pic to get some input.

 

[namvet25]

Now that she is flowering you need to give them cal/mag at least every other watering and give them a I/2 dose of nutes at every watering,If the leaves are light green they might also need a light dose of nitrogen to green them up.

 

[00biggdogg00]

X2 on what nam said. Those girls really need some cal/mag in there diet! Once you start using it, continue until you flush. Also, a dose of sea weed has helped my girls in some very rough times! If you don't have any, check out General Organics. They've got really great stuff with great prices!

 

[ghostpeppa]

thanks guys...I was doing 1/3 - 1/2 nutes to start, but looks like I may have not added the cal mag soon enough..gonna fix these girls right up