Saggy Leaves

Deja are you using the 35% H202 at 2 teaspoons for 25gal every other day? Just want to get that part straight.

Yep, 2 tbsp of 35% every other day. I really don't think overwatering is the issue because I only water 5 times for 15 minutes at a time. It looks nutrient related to me, but what do I know.

As for the roots, I really don't know why they would grow down out of the net pots and then stop. I would think that if they were grown well down past the net pot that they wouldn't be choked, but again, what do I know. The res temps stay between 55 and 65.

I will probably just stick with hydroton I guess since I have 3/4 a bag left and look into switching down to road or something if problems continue. I also want to try the nutes PC was mentioning for my next flower cycle and hopefully half of them won't die!

http://boards.cannabis.com/grow-log/...ml#post1793519

Howdy Deja,

Check the last page of this guys log and his root porn photo. This is honestly what I would expect your roots to look like at the stage you are at. Obviously this did not happen with your roots and the key is finding out why.

55-65 is pretty cold.....the ideal water temp is 70 for hydro. Mine never get lower than 64.....is that a pretty steady temp for your water?

Buy yourself an aquarium water heater and stick it in your res.....set it for 70. Shoudn't cost very much. I'm going to study the effects of cold temps on roots and see if I can find any info on it.

I actually was using an aquarium heater set at 69 until I read in Jorge Cervantes' Medical Grow Bible that the ideal temp for hydroponic nute solution is 50 degrees because it holds the most oxygen and allows the roots to take up more nutrients more efficiently. I don't mean to second guess you but Cervantes' book is always regarded as the be-all and end-all of marijuana grow books so I have been going by that.

Heh- then Jorge f*cked up. Or the editors/proofreaders.

Way too cold.

Shoot for 70F.

Only things that I know of that get best growth rate/ feed conversion @ 50F are trout and toothfish.

OK, thanks rhizome. I guess I paid $25 for some false information. I wonder how much more bad advice I have read out of there then... I have the heater in there still, just not plugged in. Its actually being used as an anchor for my "bubble curtain" that won't suction to the bottom of my res. :thumbsup: Need to pick up a new stone tomorrow.

Have you looked at any of the pictures I have posted? If so, any idea what my problem is? Or is it just cold temperature related?

Rhizome!! Always good to see you. :) Would temps that low destroy those roots like that? I've just never seen such a thing.....

You know I love both Jorge's book and Greg Greens book but I honestly don't use either one of those as a hydro guide. I have a feeling both were written slightly before hydro took off so madly but I'm not positive. I AM sure that I don't use their hydro information as a rule. Most of it is too vague anyway. BUT I do find both those books VERY useful in general so I refer to them constantly for other information.

Yeah, it is the most recent edition and it said the hydroponics section had been expanded along with a few other sections. Sorry for second guessing you Weedhound. Hopefully rhizome can come back and give some more insight. I have a feeling that it has something to do with the water sitting in the bottom of my bins, but if the water is oxygenated I wouldn't think it would be too bad. Sorta like a shallow DWC?

In other news, I started giving my vegging plants a dark period like 3 weeks ago and they are huge and their roots are insane!:thumbsup: The roots are pretty much just a huge mass in the bottom of the bin. Is it bad if they get tangled up?

I find growing a plant in veg to be stress free, but I really really really want to finally get the flowering part right, so hopefully we can get some more input here.

Omg....please don't be sorry....I'm not even sure what you mean about second guessing. I'm REALLY hoping that's the answer to your issue but it seems odd that they would do so WELL in veg....then so crappy in flower if the temps are always low like that.

You say have some clones going and doing very well deja. What are those in and how are the roots looking on them as opposed to your flowering stuff? I don't think it matters if they get tanged up as long as they don't get rootbound or mixed together and then you try to seperate them or something.

They are in the same exact setup as the flowering side, only the bins drain completely. The roots are looking great since giving them a dark period; all of them are growing very long and thick and spreading out throughout the bin. In the past, they have usually been somewhat short, and didn't spread out as far as these have. I attribute that to the dark period. BUT, if I put them into flower like that in the current setup I have, wouldn't it be worse because there's so much root mass hanging out in the water?