Help with curled new growth, and yellowing of bottom leaves..

[sidewinda]

hi all

the plant is 4 week old and was a bit late to get potted up? new top growth is dark green n curled, yellow tip on top leaf.

I just lost the last through a salt build up i assume.. rechecked its ph and was 7.8.. researched a little n found out it prob had nutrient blockout....hm, so..

i just want to check

ah, sorry..forgot cfl=6.500l.soil.ph6.6

 

[Ninjabowler]

Pics are always good, what ppm are you feeding her? If they are dark green and curling like a claw your probably giving her to many nutes right now. The yellow tip may be burnt tips from over feeding or it may be thet it got too close to the cfl. Cant really tell without pics. Good luck

 

[AZPsyclops]

Welcome Sidewinda to RIU.
A picture of your plant will be very helpful and more people can help you.
I often have this problem with this view of my smaller plants, sometimes it is due to light burn and sometimes I don't know what it's due to. The problem never seems to go very much further than the first few leaves that have those tips and the tips of are only parts that usually show damaged. My plants then quickly grow out of this stage within the next one or two sets of leaves.
I'm not sure I know enough to help you but, I know enough to ask couple of questions that other people will need.
First are you feeding the plant?
Second how far away from the light is your plant and what lighting schedule is it on?
Third; do you have this thing on a regular watering schedule?

 

[AZPsyclops]

Pics are always good, what ppm are you feeding her? If they are dark green and curling like a claw your probably giving her to many nutes right now. The yellow tip may be burnt tips from over feeding or it may be thet it got too close to the cfl. Cant really tell without pics. Good luck

I must've been writing my response when you responded Ninjabowler.

 

[sidewinda]

Well this place is the best thing ...as i was away taking some pics...which didnt turn out very good, so i tried tilting the plant to get a better shot, and i noticed.spider mites all over the bottom leaves. They are gone now of course.. thanks. i gave a little mg to sart bout a week ago but not really on any kind of regime, just heard watering in the am is better....i cant beleive i lost my last ...with a ph of nearly 8. ,,,i was obviosly so wrapped up in finely tuning the ph...the spider mites had already moved in...

....and people wonder why...lol ggrrrr

 

[garagiste]

Even with pics symtoms can be same for diametrically opposed probs. Salt build up common cause high soil ph. When you water make sure there is plenty of runoff which will leach out salts. Overwatering common cause of leaf curl. You would be surprised how well cannabis can do in soil with no added nutes, plain tap water, and judicious watering frequency. It is not finicky, it is a weed. Better to err on the side of doing too little than trying to micromanage everything. Much easier to create a problem than have a problem pop up on its own.

 

[sidewinda]

Sounds like you know what ur on about.. thats why im going to leave the nutes now till i see some further signs...then start ??? Also...im going to later fit carbon filter, would a compute fan work ..home made carbon filter...was thinking 75cfm fan..enough to help???

I appreciate all help !!