Tips curling down

[midgaar]

Over the last week or so I've noticed that the very tips of the biggest fan leaves are curled down. The overall plant looks very healthy and they are growing about a half inch to an inch per day. This is my first grow so I don't know if this is normal or early signs of something bad. They are almost four weeks into veg from seed. Planted in fox farm OF. They get watered every few days when the soil gets dry and pots get light when picked up. Every other watering gets GH Floranova Grow starting at week 2. They are up to 650 ppm. Last PH test was done about a week ago and it was 5.6. This was the PH of the runoff. RO water is always used. They are under a 400w HPS 18/6. Other then that plants seem very health and growing fast.

They were transplanted into the 3 gallon pots just yesterday with no signs of shock, they put on an inch sense then.

Here's some pictures:

 

[DR. VonDankenstine]

You need some cal/mag plus---- 1st dose with 10ml/gal then back down to 5ml/gal ever other watering. That should take care of things for ya.

 

[Budda_Luva]

looks like juss a tad bit over watering

 

[midgaar]

You need some cal/mag plus---- 1st dose with 10ml/gal then back down to 5ml/gal ever other watering. That should take care of things for ya.

Thanks, will pick some up tomorrow. Is the problem serious though? Could I get away without the Cal/Mag if needed?

 

[midgaar]

looks like a lil over watering to me hows ur schedule but at the same time a lil root bound

I water them until I start to see run off. I don't water again until the soil is dry and the pots are light. I sick my finger an inch or so into the soil and if it's damp I wait another day. Dry I water. I don't see how I can be over watering them, even a little.

The root bound does make sense though, like I said I just transplanted then into 3 gallon pots. Not sure what they were in before (maybe 1 gallon) but there were roots all along the walls of the pot. Would being root bound cause the tips to curl like that?

 

[Budda_Luva]

yea it happened to my plants and when u transplanted ur plant did u rip some of the roots offf?

 

[midgaar]

yea it happened to my plants and when u transplanted ur plant did u rip some of the roots offf?

No, transplant went as smooth as it possible could. The entire root ball just slid right out of the pot when I turned it upside down. Then I put one finger on the bottom where the drain hole was and there were no roots and placed it in the new pot. A few cup fulls of dirt later they were good to go. Also watered them with 1/4 strength nutes.

 

[nickfury510]

hey midgar....could you report back if you try the cal/mag......ive got one of my plants that is curling like that....

 

[poo taco]

You seem to be following schedule!!!thats great!!! Those plants look good!
This is a normal thing when you water with hard water, it won't kill em!
trace element deficiencies are rare if your using a decent fert like you obviously are. You can't look at 1/100 of a second (snapshot) of a plants growth and jump to conclusions...those plants look good....
I hope you read this before you dose your shit to the next level of toxicity...

 

[poo taco]

I forgot to say...calcium will further harden already hard water....
Raise the pH is what I mean.....
But the plants will be fine...
Most municipalities have pH 9.0+ water....
Calcium will raise that,,
Rapid pH differences cause the leaf curl...I know this from experience...
6.5-7.0pH is whats best...but not necessary for the beginner.

 

[DR. VonDankenstine]

You seem to be following schedule!!!thats great!!! Those plants look good!
This is a normal thing when you water with hard water, it won't kill em!
trace element deficiencies are rare if your using a decent fert like you obviously are. You can't look at 1/100 of a second (snapshot) of a plants growth and jump to conclusions...those plants look good....
I hope you read this before you dose your shit to the next level of toxicity...

POO TACO---you probably just passed over it--it's easy to do---I have done it myself----The original poster is using R/O water----I recommended the cal/mag plus because of the use of the R/O water and the pics of the plants---I would also recommend looking at the labels of the nutes to see the ppm's of sulphur due to the hook-down of the tips(visual start of sulphur def).

 

[midgaar]

Well I'll pick up some cal/mag when I goto the grow shop but I won't be giving it to the plants until their next watering. From the replies it doesn't sound like this is a serious problem and considering they have been this way for a week already, I don't think they are going to die before the next watering. I need to go to the grow shop anyway because I have smell issues, these little bitches sure do stink, so I'll grab it while I'm there.

Thanks for all the input.

 

[DR. VonDankenstine]

No problem----are you ph' your water befor feeding?

 

[DR. VonDankenstine]

check your runoff again---if it is close to 5.6 you should pick up some dolomite lime and mix 1 teaspoon into the top inch of each pot---make sure to ph your water and feed to 6.3 befor each feed as well.

 

[midgaar]

Picked up some Cal-Mag plus today but it will be another day or two before I water them. I'm using RO water that has a PH of about 6.5. When I add nutes to the water the PH adjusts itself to 5.6-5.8 from the nutes. They are hydro nutes after all. so most of the waterings are 6.5 ish PH and a few have been 5.7ish.

I'm a little worried about the cal-mag though because it contains nitrogen. The Fox Farm OF soil had a bunch of shit in it that contains nitrogen, the floranova grow nutes have a ton of nitrogen, should I really be adding more nitrogen? My leaves are already kind of dark, I'd hate to give them nitrogen toxicity. Think I should use the floranova bloom nutes or just plan water for a couple weeks? I think I'll begin to flower them by the end of the month. One is starting to show pre-flowers. I'd say it's to early to tell the sex but if I had to guess it would be a male.

 

[midgaar]

Off topic but I'm hoping it's too early to tell if these pre flowers are male or not cause they look male to me. They are still very tiny and only 3 days old but take a look.

 

[midgaar]

Cal-Mag didn't help with the tips, I'm thinking nothing is wrong and maybe it's just the strain. Any input on the pre flowers?

 

[NotMine]

Wait a week and look back for preflowers look for white hairs coming from them

 

[Londoner]

doesnt look much to worry about to me, but you shouldnt be needing to add any feed at this stage, id say a tad of over fert myself, as you mentioned yourself in an earlier post your soil contains tons of pre nutes already, and each time you pot up with fresh soil this will feed your plant adaquetely for at least two weeks or until your plant has rooted out that pot, then you re-pot again, years ago i used to feed my plants during veg in pre-fert soil like you and my tips were always curled like yours, its the beginning of over fert symptoms(rams horning)i stopped feeding and just potted up with fresh soil when my plants were hungry or rootbound until i reached my final pot size a week before flower, then a week into 12/12 (two weeks after final pot up) you can start your weak feeding schedule because your plants would have depleted most of the soils nute reserves. stop feeding, your plants look fine and dont need feeding yet wait til your plant tells you it wants feeding, i do agree with the cal/mag as your using r/o water, i dont use r/o but stil have to use epsom salts for mg in most of my grows as most ferts contain little or no mg. but if your feeding when youve just potted up into fresh pre fert soil then your asking for trouble.

 

[Londoner]

Off topic but I'm hoping it's too early to tell if these pre flowers are male or not cause they look male to me. They are still very tiny and only 3 days old but take a look.

if they look like what youve drawn in yr pic then yes they are yr first preflowers, they typically show at around 4-5weeks into veg.