my 1st grow! There curling down???

this is my 1st grow. I was given 8 clones in rockwool cubes. They are each about 18-24" tall now and the leaves are starting to curl and some are starting to yellow. Any help??

Do u have a hygrometer there?

Whats the humidity?.. Leaves curl due to lack of humidity..

45-50% is that good?

how are you watering them?

watering by hand, 32oz every 12 hours or when the cube feels dry

im using pureblend pro grow 2 tbsp per gallon and cal mag 1 tsp per gal.

teg2drah said:

watering by hand, 32oz every 12 hours or when the cube feels dry

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first thing, plants as big as yours should already be in soil in pot, assuming you don't want to go hydro. curling leaves are often caused by overwatering, and given your schedule you are definitely using too much too often. you should water thouroughly, then wait until the soil (if thats the way you go) is dry down a couple of inches. then repeat. you'll end up watering every three or so days .watering twice a day will kill your plants

this is what they looked like when i got them about 3 weeks ago. I thought they were doing good. but now the drooping and curling.

Dude, the humidity is good...
Humidity insude my cab is never more than 40% at an average of 35% ...i know thats low, but i just cant help it, no matter what i do...the humidity stays stagnant at 40% but my leaves still dont curl... im just on day 11 of growth

Whats the temperature like? I dunno shit abt nutes so cant comment

Over watering...maybe
Watering twice daily is definitely too much, u'll drown ur plants..

i was told i could grow them in the roockwool. thats how they were given to me. how do i transplant them.

i do want to go hydro, the pump broke and i havent replaced yet, thats why ive been watering by hand. i was told i could leave em in the rockwool cubes and i didnt have to transplant them.

temp is steady around 78

teg2drah said:

i was told i could grow them in the roockwool. thats how they were given to me. how do i transplant them.

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some people do use rockwool for the whole grow, but personally i prefer soil as it is very forgiving of small mistakes. even without soil, if you're keeping those clones in the original containers then you need to transplant for more space. EDIT - One gallon of pot size for every foot you want the plant to grow to.

i know you can transplant from rockwool to soil but since i haven't done it i can't give you good advice.

shit, i wanted to start flowering in a week or 2. i dont know what I'm doing. I dont want to lose these babies!! Any and all advice will be highly appreciated!!

What you have there is "The Claw". I forgot the technical term.

These are a few issues that causes "the claw"
ph issues
rootbound
suffocating the leaves (usually with a foliar spray or heat)
Nitrogen and/or general overnute.

If you are going hydro, then there is not enough o2. If in soil then its overwatering. I just recently had the claw on my girls, it was due to the air stones clogging. Check your PH and Rockwool is a big water retainer, so don't water often. I would hurry and put them in a proper home.

what would you recommend as a proper home??

they are sitting in a 4x4 resavoir, should i fill and drain the resavoir like ebb n flow or should i use a drip system?

oh and roots are coming out of the top and bottoms of the roockwool cubes.

If you are somewhat knowledgeable, go for the hydro setup. Its fun to see them grow fast! My hydro setup was about $200 with everything and it is great!!

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