Hydroponics Question and Answer NewGrowth Style

new growth, what is the cause of leaves cupping? im in week 4 of veg and my leaves at the top of my plants are cupped, curling upwards along the middle veins. also they are dark green and feel thin.

Mr. Optimo said:

new growth, what is the cause of leaves cupping? im in week 4 of veg and my leaves at the top of my plants are cupped, curling upwards along the middle veins. also they are dark green and feel thin.

Click to expand...

Upwards can indicate heat stress but curling can also indicate pH issues got any pics?

I gettin that kinda thing too. I think chem burn so i flushed and also i plan on going 1/4 strength nutes and a little more flora red, before the switch to bloom

What's up guys!!! I have a few soil grows under my belt and I'm making the jump to hydro. I'm making a flood and drain table out of an 8" deep pvc tub and I have a few questions....

I've decided to go with coir because of it's low ph and rave reviews but I'm confused as to what kind of pots to use. I'll be putting the pots on a coir mat so I want the roots to grow down, not out the sides like a net pot. Can I just cut out the bottoms of some pots I already have? Will the coco mat eliminate the need for large (5gal) pots? (I will be flowering in this tray)

I see a lot of people filling the empty spaces in their tables with hydroton (or expanded clay?), what purpose does this serve other than added stability? Will it inhibit algae growth on top of my coco mat? How deep should it be?

I apologize if these questions have been asked already, I've done a lot of research and 99% of the info I pull up on flood tables is all about how to build and run them without getting into the specifics of each medium and their drawbacks/unique properties and applied solutions.

+Thanks!!!

Looks like I neglected this thread a bit sorry guys. I would not fill the flood table with hydroton it's heavy and a waste IMO. Just use block covers or B&W poly to cover the top of the table if algae is a problem.

welcome back NG.. how's the garden?

Doing well, vertical lighting kicks ass

I am looking to set up a flood and drain table under a 400 watt MH to use for veg and a 9 site bucket system for a flower room. Do you see any issues transferring the plants from one to the other? (ive never done hydro before)

killa killa kk said:

I am looking to set up a flood and drain table under a 400 watt MH to use for veg and a 9 site bucket system for a flower room. Do you see any issues transferring the plants from one to the other? (ive never done hydro before)

Click to expand...

Sounds like a great plan I was going to set that up here myself. I use 4x6x6 rockwool to veg under 600w. For flower they would get transplanted into the bucket system filled with hydroton.

What size buckets do you use in your ebb and flow system. I have been doing alot of reading and plan on making the controller unit myself but im thinking 5 gallon buckets might be a little too big and ill go through way too much nutrients so I was gonna use 3 gallon bucket inside another 3 gallon black bucket..Does that work?

Bucket size can be any you want, I use 5gal but grow trees. I would just use the size bucket that works best for your planned plant size. 3gal is pretty standard though.

Thank you for all the unlimited knowledge on this thread. Like I was asking before regarding a 10 site bucket system and a flood and drain table my plan is to have 5 plants in veg on the flood and drain and 10 plants in the buckets( 2 rows of 5) What kind of veg and harvest schedule is gonna be needed if I want to be fully stocked? My medical limit is 15 in WA so I wanna do my maximum with the best yield in the most efficient way.

Depend on the strain, how much you smoke, and how often you want to harvest. For example if you had an 8 week strain you could harvest every 10weeks or so adding about 2 weeks for veg. Or you could stagger plants in three or four at a time every couple weeks so that you harvest a few plants every three weeks and replace them with new plants. A perpetual system is going to be more work though.

I am VERY new, first grow. I am using Hydroponics. I put 6 seeds in moist paper towel, then in ziplock bag and dark warm place. Only 1 'popped'.(like 1/4" sprout)

What does that mean are the other seeds bad? (like 96 hours total)

if I put the 1/4" sprout into like a 1" rockwool I am afraid it will break, I have some little like 1/4 rockwool....should I put it in the little Hydroponics system basket and put some of those in it and some of the clay pellets on top? Or do I need to do something else before I put it into the Hydro system.

Thanks

Hello,
Trying to get as much feed back as possible on the watering schdl on a 3x4 flood table. I am new to the whole thing and have heard many answers on this topic. The girls (6) where started from seed and now have a root structure and has been potted with hydroton. I started the first flood 30mins after the cfls came on, (i am running 200w bright wing on the ceiling, and T5 around the walls) and the second flood 2 hours before the lights go out. I am running 18 on 6 off. I noticed the leaves to be a bit dry after the first day and increased to a 3rd flood 7 hrs in, and still showing signs of dryness after the second day. My PH is 6.3 and tds 450. Using fox farm nuts. Is it possible the girls need 4 floods at such a early stage? Room temp is 75f and 42% humidity. All feedback would be appreciated.

Why do you refuse to call yourself an expert? If you have truly been growing for years, well then that makes you an expert. Why such modesty in the growing community. Most master growers will not refer to themselves as such, and if one does they get ripped apart on forums like these. If you've been growing for years and are a master grower why not call yourself as such?

Edit: For the record I am no expert. But if I were... Every expert grower I know is so modest.

NewGrowth said:

Doing well, vertical lighting kicks ass

Click to expand...

Hey NG, I'm trying vert for my first time and i got a question. How high do you keep your light in relation to your canopy? I think I kept my light too low in flower, didn't get any stretch at all. The center of my bulb was about level with the tops of the plants, the buds (even the lower ones) are nice an compact, but no stretch. Do you raise your light to encourage stretch? if so by how much and at what stage?

Thanks in advance.

anewhydrogrower said:

I am VERY new, first grow. I am using Hydroponics. I put 6 seeds in moist paper towel, then in ziplock bag and dark warm place. Only 1 'popped'.(like 1/4" sprout)

What does that mean are the other seeds bad? (like 96 hours total)

if I put the 1/4" sprout into like a 1" rockwool I am afraid it will break, I have some little like 1/4 rockwool....should I put it in the little Hydroponics system basket and put some of those in it and some of the clay pellets on top? Or do I need to do something else before I put it into the Hydro system.

Thanks

Click to expand...

The other seeds may just be old I would give them a little longer and if they don't pop try gently cracking the seed coat so it splits along the seam sometimes this will make old seeds sprout.

I'm not a big fan of the paper towel system for the reason you mentioned. Just pull the rockwool cube apart gently and place your sprouted seed in the center.

sdwgoblue said:

Hello,
Trying to get as much feed back as possible on the watering schdl on a 3x4 flood table. I am new to the whole thing and have heard many answers on this topic. The girls (6) where started from seed and now have a root structure and has been potted with hydroton. I started the first flood 30mins after the cfls came on, (i am running 200w bright wing on the ceiling, and T5 around the walls) and the second flood 2 hours before the lights go out. I am running 18 on 6 off. I noticed the leaves to be a bit dry after the first day and increased to a 3rd flood 7 hrs in, and still showing signs of dryness after the second day. My PH is 6.3 and tds 450. Using fox farm nuts. Is it possible the girls need 4 floods at such a early stage? Room temp is 75f and 42% humidity. All feedback would be appreciated.

Click to expand...

Not sure what you mean by the leaves being dry? Are they crispy and dead? This is generally a sign of salt build up. Hydroton can be flooded more often than more absorbabt media. If you are getting droopy leaves go ahead and increase your food interval but also make sure you're getting sufficient drainage.

Stoner Smurf said:

Why do you refuse to call yourself an expert? If you have truly been growing for years, well then that makes you an expert. Why such modesty in the growing community. Most master growers will not refer to themselves as such, and if one does they get ripped apart on forums like these. If you've been growing for years and are a master grower why not call yourself as such?

Edit: For the record I am no expert. But if I were... Every expert grower I know is so modest.

Click to expand...

I know a few guys who tell me they're master growers all the time. They grow mediocre weed inefficiently but don't tell them otherwise!
I would say ego can be a huge enemy to your garden, the plants simply do not care how 'badass' you think you are Cannabis cultivation has humbled me over the years, just when you think everything is perfect something goes wrong. I would say that when something goes wrong, 90% chance I caused it. If I get a big head it's hard to see the problem and correct it in time. In short the more I learn about cannabis the more I realize I know very little.