Plants are dieing, please help!

[sum1cull911]

No news yet... I'm really anxious, they're getting realllllllyyyyyy big and I'm running out of room.

sum1cull911 Reviewed by sum1cull911 on 09-21-2010. Plants are dieing, please help! Hydroponic DWC Setup Grown in rockwool with rocks on top(recently had algae on top of rock wool, thats why the rocks are on top, I think algae was raising my Ph to 8 every 12 hours or so... I recently cleaned and refilled added new nutes) Lights 18/6 5 24" fluorescent plant lights 1 18" fluorescent light 1 18" Blacklight ALL 3" From Plants Lights cooled by fans Fans on plants 3 Air pumps running on high 24/7 Rating: 5

[headshake]

No news yet... I'm really anxious, they're getting realllllllyyyyyy big and I'm running out of room.

they are going to double or triple when they go through the stretch. you better get ready. not to mention you are running co2 so....


-shake

[sum1cull911]

Still no news, they're getting huge? if they get too big can I trim them to keep them from growing anymore? dont get me wrong, id love to let em grow, but i only have so much room... still dont know the sex either, only been three days though...

[headshake]

Still no news, they're getting huge? if they get too big can I trim them to keep them from growing anymore? dont get me wrong, id love to let em grow, but i only have so much room... still dont know the sex either, only been three days though...

once in flower you don't want to trim anything. the best you can do is super-crop them. it's basically where you bend the stem over 90 degrees. it will send the hormone auxin to the auxillary bud sites and cause all the small shoots to grow vertical and the main shoot will bend back up to join them.


-shake

[sum1cull911]

once in flower you don't want to trim anything. the best you can do is super-crop them. it's basically where you bend the stem over 90 degrees. it will send the hormone auxin to the auxillary bud sites and cause all the small shoots to grow vertical and the main shoot will bend back up to join them.


-shake

awesome, thanks for the great info! most likely saved me from killing my plant!

[redaaron]

a few suggestions: switch over the the flowering nutes if you haven't already. they carry less nitrogen which should slow down vertical growth. i know i said you COULD wait but it's for the best. also id do about 3/4 strength. if they show signs of underfert then go ahead to full dose.

i did some research on blue vs red lighting, apparently to my forgetfullness, blue encourages foilage growth while red encourages stretching and fruitation.

so, you might think about taking a few lights out and cutting off the CO2 to slow them down. When you do get buds and after a few weeks they begin to thicken up then you should go ahead and reapply the CO2. Id also spend a few extra bucks and swap out a majority of your lights for the 2700K soft whites at that time. Way better red color for growing bigger buds.

[sum1cull911]

well i got some new lights. 3000k should be alright, right? I think thats the lowest you can get in fluorescent tube lights

[redaaron]

yeah 3000k is a-ok! id add them one at a time and eventually end up at a 4:1 ratio red to blue. anyway you want some blue in there.

man i have been doing some reading!! only a days worth of information and I don't pretend to understand any of it yet. it's a good read...
http://boards.cannabis.com/advanced-...xperiment.html lots of good information about lighting/supplemental lighting!

lots of improvement in the led scene as well.

[sum1cull911]

Its been four days since started flowering. The plants have reached the top of the aquarium. Whats the maximum days til I should start seeing signs of sex? I need to get any males out so I have room for the LST with the females.
I cut 2 lights and all co2 until i find out sex. temp has been lowered to 80ish

[redaaron]

damn that's some fast growing bud :stoned:

for me it takes about two weeks, most likely at the very tops of your plants is where the first ones will appear. if all else fails you should pull them out of the aquarium and find a good open closet or room to set everything up in until you have some idea of male or female and how much space you're gonna need.