DWC, More Air stones the better?

Just wondering if adding more air will speed things up and if there is an optimin amount to have?

I am currently running 3 300LPH pumps into a variety of different air stones. The best of which was a tiny one, I got free in the pet shop. It’s round and is about 4cm long, really kicks out a lot of small bubbles.

To clarify my question.

Current aeration is at: 450LPH into 3 air stones for each 25L tank. + small power head with air line.

Would there be any point in adding more?

Controlling the temp at 66-68º
is the best way to add the most DO.

.

I don't know very much about the math, but I do know that our plants were flat out dying when we only had 1 pump in our 75 gallon system, so we added a second pump at about 1.5x volume of the first one, and it solved our problem. As far as optimum, dunno about that.

Hi, Earl - Redshifty

Ye, got my rez temps well under controle 66 day and night, in fact got most eliments of the room under control.

I have posted this somewhere else but i need an answer so i will post it again.

By the end of my 18 hour liight cycle the plants are wilting.

I think it is humidity, i can't get it above 30%, I have the lights on during the night time to help with temps and when I get up the humidity has droped bellow 20% and the plants are all wilted.

I have tryed everything I can think of to rise it, trays of water, haning towls, the only thing that works is turning off the extracton fan but then the room temps climes real fast.

At my wits end with this one!

I'm out of cash, like realy out of cash, I did have a humidifyer but it broke (Didn't even last till the end of VEG, what a waste of money) so any ideas are going to have to be DIY.

Thanks for the help.

i wish i had a problem of low humidity. having low humidity is a lot better then it being yoo high. grow more plants, they will increase the humidity! lol, idk what earl could tell you on how to increase RH, it seems like youve covered all the remedies. spray the floors with water, go around and douse everythying with water. lol good luck.

also i dont think the RH(relative humidity) is the problem if your plants are wilting like that), maybe back off the lights a little bit and keep temps in check. some ppl prefer 30% RH over 60% especially during flowering.

Hmm, I have just put anouther Humidstat in the room and its reading 15pionts high than the origanle, could explain a lot.

The wilt started happening when I lowered the water level to an inch bellow the pot level. Could it be that without the addaded support of the roots in the pots the plants are having truble aquiring enough water?

Raising the light a little would help this, it would also make cooling the room easyer which in it's self will help the humidity problem.

I think I will try this tonight and see how I get on. That said if anyone has any other ideas let me know.

Just done all that and fingurs crossed.

I'm a little worried about the roots though. it's probably fine and i'm just nurvus, when they first grew they where white almost a hint of cool blue in them, now the older thiker roots are turning more of a cream color. I think that is okay, I will mess about and try and take a photo, it will be hard to do without a flash though.

Mr Green Man said:

Just done all that and fingurs crossed.

I'm a little worried about the roots though. it's probably fine and i'm just nurvus, when they first grew they where white almost a hint of cool blue in them, now the older thiker roots are turning more of a cream color. I think that is okay, I will mess about and try and take a photo, it will be hard to do without a flash though.

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add 4ml of 50% h2o2(hydrogen peroxide)/gal. ive heard you want to add this much every week or so. im not sure how many tbs/gal that is. ive never done it myself but have been studying a thread from a expert hydro grower that has great results.

Yes, I was thinking of that, I was going to go for down the organic additives root, no pun intented.

But as i'm still wating for them mybe some H2o2 would be a good idea. Any idea where i would pic some up, the chemist?

Here is a pic of the roots, what do you think?

Mr Green Man said:

Yes, I was thinking of that, I was going to go for down the organic additives root, no pun intented.

But as i'm still wating for them mybe some H2o2 would be a good idea. Any idea where i would pic some up, the chemist?

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as far as using organics and h2o2 together, you dont want to do it. it could potentially kill any benificial microbes that you need to convert the organics into stuff your roots can absorb. also there is no difference between chemical and organic nutes as far as your roots can see, after the microbes process the organic matter. so your roots absorbs the same thing from each except organics takes more time. im not 100% sure if i said everything right, but my suggestion to you is stick with the chemicals and just flush two weeks prior to harvest. organics is more money, some ppl say that their organic buds taste better...... idk im working on my second crop myself so im no expert. anyways good luck.

I quite agree, people get way to hung up on organics and miss the piont.

I want to use Liquid karma and Canna Zym, as I have heard really good things about them and I beleave that they are living additives? Not sure if they qulify as organic or not, but in my mind organic is something grown in soil out side.

I ment that I could use H2o2 in the mean time, If there was a problem?

How do they look?

Mr Green Man said:

I quite agree, people get way to hung up on organics and miss the piont.

I want to use Liquid karma and Canna Zym, as I have heard really good things about them and I beleave that they are living additives? Not sure if they qulify as organic or not, but in my mind organic is something grown in soil out side.

I ment that I could use H2o2 in the mean time, If there was a problem?

How do they look?

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your plants look pretty good bro. ive never done a dwc grow bud ive seen roots look alot worse, yours look good. organics is, to me, growing without chemical nutes. using a fert that was derived from a living(the poop part) or dead organism. it can be derived from poop, dead fish, seaweed, etc. you can grow organically indoors and/or hydroponically.

I have done lots of work in producing organic veg, and I have come to the conclusion that the best is somewhere between the two.

I don't like the idea of nasty chmicle sprays to kill bugs and molds on my food. But when it comes to ferts many "Chemicle" ferts are better. But lets not forget the important role that thoes Good bactira and fungie do.

This DWC grow is the first time I have really looked at how all these elliments come into play. Im finding it really interesting.

Any way. Thanks, just need someone to tell me everything is okay.

radshifty i also use a large resv.( about 80 gals) we have 4 air stones on 4 different air lines in differnt sections of the resv. aswell as 3 water pumps to keep a good current. like others said water temp is important. as this is my 1st large grow i understand that more and more. if you dont keep the water at a good current you will surely have problems bacteria can form much easier with a resv with no current

Yes, i kinda wish I had brought slitly bigger pumps, I got one for 25Liter Fish tank, very pretty tiny but they are pushing the water around.

Mr Green Man said:

Yes, i kinda wish I had brought slitly bigger pumps, I got one for 25Liter Fish tank, very pretty tiny but they are pushing the water around.

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just buy another pump and airstones. they are cheap enough, plus if one breaks the other one should be working....

Ye, well I have 1 air pump 280LPH each tank, a very small power head each tank, and a 300LPH split between the two.

I'm really broke, I think I have spent over £$€1500 now!!! and I still haven't harvested anything. I could have spent half that if I knew then what I know now. Such is life.

~Any way. this thread has kinda gotan away a bit so i think I will finsih it up now.

Thanks every one.