slow weak growth

hello all im posting because I am a newb and I feel like they just stopped growing..ir an into small complications like heatstrees nd light stress , too high ppm.. things I can easily fix before they are stunned...but it seems they just stoped growing..also many ppl are telling me at week 4 they are very bushy ...can anyone help ??? why is mine not bushy ??...my lights are all the way to the ceilingand I have 5x 1000 watts going on

I have a water chiller..co2 at 1200 ppm ...room temp always 74..at night 70....water rezzyy always at 70....fan blowing on low..


ph is always5.8.

GH 3 part system gro micro bloom ...florablend, 1ml/g diamond nector 1.5 ml/g floralicious 1ml/g cal mag 3ml/g
rapid start 1.5ml/g

15ml/g 10ml/g 5ml/g on the gro micro and bloom


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Move your lights closer to prevent stretching.

ficklejester said:

Move your lights closer to prevent stretching.

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Do I turn down the wattage as well?? they can go down to 400

Do you only have 1 400w light for all of them?

ficklejester said:

Do you only have 1 400w light for all of them?

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I have 4 lights in the room.they are digital ballast they go from 400-1100..so no I have 5x 400-1100 watt

They are stretching badly so no don't turn the wattage down. If light is your only problem you need to lower the lights considerably

no clue said:

They are stretching badly so no don't turn the wattage down. If light is your only problem you need to lower the lights considerably

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about how far away should it be from the top of the plant at 1000 watt?? and im thinking about toping the plants..are they ready for topping.. or FIM ..whatevrer u wanna call it..

20 inches or so works for me and topping is a good idea..they are old enough

Your a newb? and running 5 1000w lights WOW i cant wait to see what your setup looks like when you think your no longer a newb!

It looks as if it's either too high ppm or lack of oxygen (because in the image your leaves look like they are just hanging there and not reaching for the light. what type of hydroponics are you doing dwc? I would check the ppms of your solution and then check it again in a day or two and see if the solution is increasing or decreasing in concentration that should tell you wither or not your over feeding if thats not the case then. You probably need stronger pumps more oxygen equals more vitality. If the plants are not being damaged and you just want to strengthen up then you could probably add some silica that might help. What are your res. temps?

Usually people who are new tend to start small like one or two plants under smaller lights so they can grab the basics in a couple grows and not jump into it head on because you are going to walk into obstacles along the way and thats the difference between losing a bit of money and losing alot. Growing cannabis isn't as easy as you may think despite the ease some individuals here on RIU make it seem.

Goodluck bro!

How many plants are hooked up to each pump?

youngbuzz101 said:

How many plants are hooked up to each pump?

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depends on the room, the max is 36 buckets and I checked with the guy at the hydro store he said that pumps fine for as many buckets as you can fill a room with..I only have 36 ..6 gallon buckets , takes aboput 17 minutes for all the bucket to fill and yes DWC... greentrees ...flood and drain...

I bought pulleys and lowered my lights about 2 feet away from the plants. They were like 6 feet away lol...im bringing my ppms down to like 600..they were at 700 when I was doing 1- 1- 1 ..they went to 1200 at 3-2-1...I also flushed the plants with straight r.o water for an hour ....15ml/g...10ml/g...5ml/g.. of micro bloom gro
......and now I am getting some random orange spots on some of them ...here's a pic I just noticed them this morning...I saw in my book it said it might be manganese

I turned my water down to 4 times a day instead of 5 and it looks like the leaves are a little dry ...I don't know if its because of the lights being lowered or the feeding being turned down..im only making one change at a time in my rooms so I can know if that was the change that effected the plant.


it deff looks like too much nutes... my ipad sucks so I cant get a good pic I found one online of a leaf looks exactly like what some of mine are looking like ....they aren't reaching for the light...well it looks like they are but the leaves are curling orr idk its very fraustrating..I have 2 rooms with 10 lights looking like this...they weren't like this when they were growing before ...

I flushed the plants and re did the feed...I lept florabldn and flora licious diamond nector the same...all 1ml/g
and my 3 2 1 micro bloom and gro..is 6ml/g- 4ml/g- 2ml/g...cal mag back to 2ml/g...rapid start 1ml/g

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youngbuzz101 said:

How many plants are hooked up to each pump?

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oh ya and I brought the ppm down to 500...from 1200 lol....well it went down on its own to that much with my old mix but the old mix was 1ml/g on micro bloom gro

Healthy leaves will reach for the like looking like this ""Y""..

As for the leaves it looks more like calcium def. To me. Why were your plants at 1200? How old are they? You might have cause lock out. I have done that recently but I'm in soil and a bought a brand of soil I was not familiar with and after my first feed two weeks later it was still to strong and burned and locked out my ladies I had a mess reversing it. As for lighting I don't use HID so I can't help you there.

With that said it is errelevant what deficiency it is because adding more nutrients at this point will probably cause more harm then good. 1200 ppm is high for hydro like 1200 should be were you peakband start coming down from. I would flush and add balanced low dose nutrients and wait. Monitor new growth old growth that's damaged will not heal.

I would also post a thread on the c hydro section. They will be able to help you

youngbuzz101 said:

Healthy leaves will reach for the like looking like this ""Y""..

As for the leaves it looks more like calcium def. To me. Why were your plants at 1200? How old are they? You might have cause lock out. I have done that recently but I'm in soil and a bought a brand of soil I was not familiar with and after my first feed two weeks later it was still to strong and burned and locked out my ladies I had a mess reversing it. As for lighting I don't use HID so I can't help you there.

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they were at 1200 becuz im a noob ..I just put in the nutes forgot about the ppm lvls...they are 4 weeks old going on 5 ...they just stopped growing..its driving me crazy im about to just completely flush it and give it the nutes I was giving seedlings... which was 1ml/g of everything expect 2ml/g of cal mag....they are not reaching for the light and haven't been for 2 weeks...I didn't think it was too serious but it never went away ...I NEED HELP PLEASE...IVE FLUSHED THEM, BROUTH THE PPMS TO 600 ..BROUGHT THE LIOGHTS DOWN I don't know what else to do .......................I have 10 lights up that's 10x1000 in 2 rooms and they all look like that .,..

Yeah they stopped because there in lock out. They won't grow until the problem has been correct and the plants restart themselves just put your nutes at quarter strength until you see noticeable growth then slowly raise your ppms. Let the plant tell you when to feed use a meter to watch fluctuations in ppm and act acordingly. You won't need to flush in dwc just correct your resivour solution and just wait. Remember to take your reading at the same time each day. Watch your pH as well but don't change your pH to often or more than .5 in one change. These are all things I learned the hard way.

You should have made a trial run before you went all out. You will learn from this grow just don't go into flower until your plants are healthy or your yeild will suffer.

You probably set yourself back 3 weeks to a month. Try not to get impatient and constantly modify your solution it will only slow your plant down more and stress it further you need consistency so they can get a grip and adjust.

From what I understood reading the thread, you've got your lights all the way up to the ceiling because you ran into heat stress issues, but the lights being that far away is making them stretch too much...so the issue you really need to straighten out is airflow / heat. Rather than raising the lights too far away, ideally you'd keep them close but deal w/ the heat w/ an alternative method (ie; ac, more airflow, etc). IDK about the stunting, as I'm a noob myself, but I'm sure you'd see better results with the lights closer and the temps dealt with more practically.

ayr0n said:

From what I understood reading the thread, you've got your lights all the way up to the ceiling because you ran into heat stress issues, but the lights being that far away is making them stretch too much...so the issue you really need to straighten out is airflow / heat. Rather than raising the lights too far away, ideally you'd keep them close but deal w/ the heat w/ an alternative method (ie; ac, more airflow, etc). IDK about the stunting, as I'm a noob myself, but I'm sure you'd see better results with the lights closer and the temps dealt with more practically.

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they were already at the ceiling when I started before the heat stress...the heat stress was because I tried to make the room temp higher thinking they would row faster..i put them back down to 75 room temp...and I bought pulleys to bring the lightdown...the problem im having is they are not sretching for the light as they should...I mean they do stretch for the lights like a Y but they are clawing as u can see in the pics...I look at other grows and the fan leaves shoot straight out and up...