Hydroponics

Extra CO2 is good for your plants, but only if you leak it slowly over their foliage. It is heavier than air so will sink, so an oscillating fan on the floor will stir it up. You still need to control the exhaust and temps in the room.

Check out the automatic nute feeder after your 20th crop.

I can't tell if your White Widow plant has a problem, you'll have to keep a close eye on her.

HTH

Hey Potroast, great thread. I have a drip sys. in rockwool. I have 6 ww girls going into there 4th week of flower. I have a strange problem and can't put my finger on it. I have 2 girls that are driving me to a nervous breakdown. I wish I could take a pic. of this but my camera sucks on any kind of closeup. The problem started about a week ago. They started flowering big time and getting cola's under my 400 hps. I had one plant get too close to the light and got some burning. I move the light up everyday but leave some close to accomadate the lower buds. Well the buds tric's stopped growing and the buds are becoming some what packed with unusual density. I have 3 other girls looking perfect but I don't know what to think of the 2. I am using floranova bloom with florilicous plus and Koolbloom. My question is if you burn the plants what is the condition of the plant. Can it come back,will it come back this late into flower. I really am not sure this is the problem. Only thing I can come up with. I already have made this a long post if you need more info for diagnosis let me know. One other thing Iam losing A LOT of lower leaves a fistfull every couple of days. Most plants bottom half leaves are now gone and more on the way.

Just thought of some additional info. I am having a slight humidity problem with summer here. The humidity keeps at around 35 to 55. Mostly in the 40's. every once in a while it gets up around 60 to 70 never more than a couple of hours. I have 1 pu fan on the bottom and a intake about 70cfm for the tops and a clip on fan blowing on the bulb usually around high 70 to low 80's. Constant fluc though. Thanks

WWgrower, a 400w HPS without an air-cooled hood should be 15 inches above the plant top to keep from burning the plants.

When you add Kool Bloom, you need to cut down on your basic nutes, so the FloraNova should be less than 10ml/gallon, maybe 5-7ml.

As plants flower, and get taller, the lower leaves get less light, and are used by the plant, so naturally yellow and die. At this point, you can only let your plants mature as best they can. Give them more fresh air, and more circulation, because in late flowering they need it.

HTH

Thanks potsoast, Did not know that about the floranova but I keep my PPM's at 1300 before I add the Koolbloom. Also I thought or was using 12 inches away from light I will move it to 15. When a plant gets overheated and burned how long will it take to recover if at all. Two plants this happened to over a week ago have not recovered the buds are not fruiting up,like the others. Thanks

sorry to change the subject but I flush after 5 weeks of flowering,I want that white ash bra.my 2cents peace PH2

WWgrower said:

Thanks potsoast, Did not know that about the floranova but I keep my PPM's at 1300 before I add the Koolbloom. Also I thought or was using 12 inches away from light I will move it to 15. When a plant gets overheated and burned how long will it take to recover if at all. Two plants this happened to over a week ago have not recovered the buds are not fruiting up,like the others. Thanks

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The FloraNova is a mostly organic nutrient, so it's more forgiving than a strong chemical nute, but you still want to use less with the Kool Bloom, and the plants don't need as strong a nute mix in late flowering anyway. Also the Kool Bloom is strong stuff, so use no more than a level teaspoon per 4 gallons of soup.

Once foliage is damaged it won't recover, and the bud amount around there will be less.

purplehaze2 said:

sorry to change the subject but I flush after 5 weeks of flowering,I want that white ash bra.my 2cents peace PH2

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You can flush after 5 weeks, but you'll want to feed them again in the next 5 weeks.
Unless you're growing some kind of Haze, then you'll have another 7-8 weeks.

HTH

Hi potroast im new to growing an i got some skunk#11 feminised seeds, planted 2days ago and already hav 3 little sprouts. how far away should my 250w MH be?
and can i clone feminised plants cos ive heard they die off pretty early is this true?

OK. Switching to hydro next grow. Lots of questions. I will be doing an ebb and flow setup in a 3' by 3' tray with a res that can hold 49 gallons... I will be using a 1000 watt hps lamp for most of the grow. Perfect grow room as far as temperature and air flow go. First, can i get away with 25 gallons in the res. Second, can I follow the GH Flora Series Keep it Simple Recirculating Program at recommended strength? It's an 8 week program from seedling to ripen. Third, I'm not close to a natural spring or creek so i have to use tap water. Will this be ok to use? Using 6" net pots with hydroton and growdan cubes for the clones. Any thoughts or responses will be very appreciated. Leaving soil because i'm tired of the mess and buggies and all that noise. squawk squawk...

I just started setting up my system, hows it look?

I started a thread in CFL but it looks like i would probably get more help over in here... If you want to check the rest out, my thread is https://www.rollitup.org/cfl-growing/84066-my-first-real-grow-hydroponic.html

iano6969 said:

Hi potroast im new to growing an i got some skunk#11 feminised seeds, planted 2days ago and already hav 3 little sprouts. how far away should my 250w MH be?
and can i clone feminised plants cos ive heard they die off pretty early is this true?

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Start at 3 feet and lower slowly over the next week. You can clone any plant that you can get a cutting to root.

lagwag said:

OK. Switching to hydro next grow. Lots of questions. I will be doing an ebb and flow setup in a 3' by 3' tray with a res that can hold 49 gallons... I will be using a 1000 watt hps lamp for most of the grow. Perfect grow room as far as temperature and air flow go. First, can i get away with 25 gallons in the res. Second, can I follow the GH Flora Series Keep it Simple Recirculating Program at recommended strength? It's an 8 week program from seedling to ripen. Third, I'm not close to a natural spring or creek so i have to use tap water. Will this be ok to use? Using 6" net pots with hydroton and growdan cubes for the clones. Any thoughts or responses will be very appreciated. Leaving soil because i'm tired of the mess and buggies and all that noise. squawk squawk...

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Your res size will be determined by 2-3 times what is required to flood. Start with less nutes than the label says, and watch your plants. I've always used tap water for hydro.

zaq1234 said:

I just started setting up my system, hows it look?

I started a thread in CFL but it looks like i would probably get more help over in here... If you want to check the rest out, my thread is https://www.rollitup.org/cfl-growing/84066-my-first-real-grow-hydroponic.html

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That looks good, you will want to keep the root zone dark though.

HTH

hey was up bro i see that u say that u are good on hydroponics well i will like to get some ideas or can u give me some good tips.

That looks good, you will want to keep the root zone dark though.

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good to know haha, thanks!

So I set up my first system today, I got one of those automatic grow cabs. I know you start the light cycles at 18/6, so I've got it on a timer. Growing in hydroton with Supernatural nutes. The sprinkler has two settings, either it rotates like a lawn sprinkler or it sprinkles lightly like a fountain. But it sounds from what you're all saying here like I'm only supposed to run the water every once in a while, and not have the sprinkler on all the time. Is this true? I can't find a setting to make the sprinkler only come on occasionally. It's either running all the time or off.

Also, when you say "flood," does that just mean pouring water through the pellets? It seems like some people are using the word to mean something you do once a week and others are saying you're supposed to do it 5 times a day. What's the difference between flood and flush?

[email protected] said:

hey was up bro i see that u say that u are good on hydroponics well i will like to get some ideas or can u give me some good tips.

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My best tip to you is to start reading the threads in this forum. While you're doing that, get growing in dirt.

littlebat said:

So I set up my first system today, I got one of those automatic grow cabs. I know you start the light cycles at 18/6, so I've got it on a timer. Growing in hydroton with Supernatural nutes. The sprinkler has two settings, either it rotates like a lawn sprinkler or it sprinkles lightly like a fountain. But it sounds from what you're all saying here like I'm only supposed to run the water every once in a while, and not have the sprinkler on all the time. Is this true? I can't find a setting to make the sprinkler only come on occasionally. It's either running all the time or off.

Also, when you say "flood," does that just mean pouring water through the pellets? It seems like some people are using the word to mean something you do once a week and others are saying you're supposed to do it 5 times a day. What's the difference between flood and flush?

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It sounds like you have some kind of aero system. Is the sprinkler spraying the roots? We need to know a lot more about your system to help you, but I imagine that the sprinkler is supposed to run constantly.

Flooding is a method of irrigating a hydro system. You can also drip, spray, mist or hand water. To flush a system is to try to reduce nutrient salt buildup, and is done periodically and especially before harvest.

HTH

Here's my cabinet:

STEALTH HYDROPONIC GROW CABINET CAB BOX LIGHT SYSTEM 1 - eBay (item 260243157368 end time May-29-08 03:42:19 PDT)

I'm trying to figure out the difference between hydro & aero. Does hydro just mean it's always submerged and aero mean the roots hang out of the pot above the water?

Umm, pardon me, but are you saying that you paid 3200 bux for that unit, and you don't know the difference between aero and hydro?

I can't tell anything by their description, so you'll have to actually answer my question if you want some help.

HTH

quick question: I have searched high and low for rockwool/stonewool/rapid-rooters, anything for my seeds, but have not been able to find anything. My problem here is my seeds are sprouting and in desperation I stuck them in peat pellets. Is there any alternatives to the rockwool I can try out? Peat holds the water way to well to use in this system and I dont want to have to resort to potting them because I really want to try out this hydroponic stuff. thanks!

potroast said:

Umm, pardon me, but are you saying that you paid 3200 bux for that unit, and you don't know the difference between aero and hydro?

I can't tell anything by their description, so you'll have to actually answer my question if you want some help.

HTH

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rofl, thats what i said.

zaq1234 said:

quick question: I have searched high and low for rockwool/stonewool/rapid-rooters, anything for my seeds, but have not been able to find anything. My problem here is my seeds are sprouting and in desperation I stuck them in peat pellets. Is there any alternatives to the rockwool I can try out? Peat holds the water way to well to use in this system and I dont want to have to resort to potting them because I really want to try out this hydroponic stuff. thanks!

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you can get rockwool and starter plugs only at hydro stores. ebay has hydro stores with competitive prices.

since you already have them in peat pellets maybe you would have better luck transferring them to soil...although i won't condone such a use of cannabis rofl.

If you can, get some more seeds and a bag of rockwool/plugs ($15), just sprout the seeds in those and apply them to your setup.