Leaves curling downwards from the tips???

I know just watering and/or over watering can do this, but thats not the issue here. I do have temps set to go from around 70'-76F with the lights on and drop to around 51'F at lights off. I am having this in my flower room as well as in my vegg room. The vegg room has a 400 WATT MH on 24/7 and is inside my house kept at a comfortable 65-72' F. The flower room is in a garage seperate from the house. Any ideas? This is some weird shittttt.. I am thinking it is something that occurs in the vegg room and then carries out to the flower room and gets worse. My plants overall just do not look as green and bushy as they used to. I do use peters chem ferts, 20/20/20 on occasion for vegg with a ppm at about 600. I use it at 1/2 strength and only hit em really 1 time in vegg. Flower is Peters 10/50/10 and I hit them 2 times in 60 days. ppm is around 1000 and ph is around 5.8 or so. It's water after that...

 

I just read some info on the Blueberry strain. http://www.worldwideseeds.com/seed.php?seedno=95
Mentions that it common and is part of the genetics to have curling leaves. Strangeeeeeeeee. I am currantly flowering the following strains;
Originol Blueberry from DJ Short, Trainwreck, White Rhino, White Shark, a Shiva of some sort, august west, a Hawaiian X KGB, Pineapple Skunk, and a P91 that came straight out of the Berkley horticulture room, lol. Most of the leaf curl is on my Indica dominant plants and my Blueberry. I am thinking this may just be an issue with all of my strains not likeing the same envrionment. I may keep a few moms back and just flower compatible strains at a time.

Anyhoooooo, any ideas guys? Mean, Geck,


And where the fuck is Bruce????

 

Hard to tell without pics. Have a look here http://greenmanspage.com/guides/plant_abuse.html and see if any of the pics relate to your problem.
Hope this helps

 

Some twisting and curling is common for certain strains, but it may also be that they have been overferted. From how you have explained you feeding process though, it can't be a Nitrogen build up. The only other thing that I can think that it may be causing the curl is a lack of trace nutes do due the fact that chemical fertilizers don't carry an abundance of them or a possible pH fluctuation/ombalance.

Like you stated earlier, some strains just curl. I have had some strains curl for no reason. I would suggest feeding them a little more often with a more organic based fertilizer they will look much more healthy and produce better buds. Chemical nutes are harsh and cause problems.

 

check for spidermites and aphids..

 

Minimal mites and no aphids. I did have some powdery mildew early on, but was fixed easily as caught early. Used Safers© fungicide.

 

I am sooooo lucky, in all the years I have been growing...I NEVER became bug infested. I don't know why, but I just have never had a pest problem. I have never had powdery mildew, mold, or any of the other problems some indoor growers acquire. Ihope things start looking up for ya' mh2. I woyukld have said to check for bugs, but Ihave never had a bug problem and wouldn't know that it may have been a possibility.

 

After a good flush and foilar spray with water, they are doing much better. I have been at this game quite awhile and never had this happen. I did remember that I used a hydro/soil nute solution for a couple waterings. GH micro and GH vegg. That may have been the issue. But after the flush, they are all healthy and lots of new growth and bud sites.

YES a ph meter is a great tool and same goes for a ppm/ecc meter. Always use em every time I water.

I am repotting all of my vegging ladies from 1 gallon pots into 6 gallon pots to get them adjusted and ready for the next flowering run. I use "Whitney Farms" general purpouse mixed with 30% Perlite and 20% Vermiculite. I water heavily with "Liquinox B1" to reduce the shock. I also topped off the pots with "4 corners" organic soil. Pretty much 50% Peat and 50% earthworm castings. Great topper and will carry the Nitrogen slowley throughout the process. Some people have asked me why so much Perlite and vermiculite???
Awnser is very easy. The soil is just there to hold up the plants and give the roots a place to grow, the additives create air pockets alowing more Oxygen in the root zone. When I water, I do so at 1/2 the reccomended level. I do have to water twice as much as most people, but when I do this, I am hitting them hard with a 30% run off. Replacing all the nutes with fresh ones and adding tons of oxygen. Kind of flushing and feeding at the same time. I try to feed them with readily available/easily absorbed nutes. Kind of like hydro but in a light soil mix.

I am sure that this method could substitute ORGANIC teas that are readily available to the plants and achieve the same results. Although this would put the michrozia "SP" process of breaking down nutes/etc at the back burner. Some prefer natural SOIL breakdown of elements. I am not ORGANIC as of yet, but it is in the works. It is my goal. If I can break down elements organicly without doing it in the soil in the pots and make a tea, this goal will be achieved. It will be in the teas, not the soils. Just a thought. lol.

I love harvest time. Lots of work getting all the vegging plants ready, but knowing a harvest is close helps, lol. I will get my pics taken and posted for you guys. My Trainwreck ladies are the winners this run, and the Blueberry from DJ Short are a close 2nd. All the other ladies, White Shark, Pineapple Skunk, HawaiianXKGB, August West, White Rhino, P91 are doing great as well. The upcoming runs will only include the B/B, Trainwreck, White Rhino, and maybe a HumboldtXHash plant cross I got from Tiedie awhile back. Phasing out the others has been hard but due to the variations in needs, i think it is wiser to accept the ones with similar growth patterns and preferances as far as nutes, temps, etc. Of course I will toss in a few from seedstock just for variance sake, but I think the above will be the regular runners. I appreciate all the help folks. Narrowed it down to a nute switch I forgott about. Bad, bad, bad cultivator, lol. Holidays got me a tad lost. I will get pics in asap. Thanks again folks.
Med H.