Is this Ca def. or what?

[JackdaWack]

looks rootbound, i mean u still have that huge plant in a 6" rockwool cube..?? u need let those roots out.

[RedEye69]

Try his thread and see if it helps....International Cannagraphic Magazine Forums - The Complete guide to Sick Plants,pH, and Pest troubles!

That looks like too much of something to me rather than not enough of something.

Yea, that guide is what made me think it is Ca. Hmmm, your second statement made me think, so I checked the TDS inside the rockwool and it was over 2000 (my meters max).So I think maybe I should flush rockwool with plain water.

[RedEye69]

looks rootbound, i mean u still have that huge plant in a 6" rockwool cube..?? u need let those roots out.

Hmm, I was told you could get twice that size plant in a 6". It is only 3' tall. Also, If it is rootbound would it have time to make a difference with only about 4 to 4 1/2 weeks left?

[RedEye69]

I found out the one with the spots on the leaves is White Widow. Could that be nute burn, 'cause I heard WW is picky about nutes?

[postmandave]

Redeye if you find anything on this prob will you post it as i got the same thing going on with just one strain the other 3 strains in my flower room are not affected . the differance from my prob and urs is im in soil its been anoying me for the last 3 weeks and i can find and answer its not cal with me i use sensi cal mag bloom its not ph my soil is ph 6.8 and run off ph is 6.9 my room is well ventillated and man is this winding me up.White widow can be fussy on nutes mate so you may be on the right track .thanks the postman.

pic one is the affected plant pic 2 the other plants no other strains are affected exept aurora indica

[Weedhound]

Here is how I solve the problem (hopefully) If I am not sure what's going on then I automatically cut back on the nutes....after checking ph of course. I find this to have more of a safety net than adding nutes and burning them. If you add less nutes and it's a def....you'll see problem increase. If it's too much the plant will improve. I have had both problems in my hydro setup and learned the answer by using this method each time. Good luck guys.

[postmandave]

Thanks weedhound.:thumbsup: The postman.