Grow Room Open Source Grow Cube

[ThaGreenBandit]

Wzup Jack? I'm no expert, but I'm thinking calcium deficiency. Take a look at this, and you can see for yourself:
http://www.growweedeasy.com/marijuana-symptoms-pictures
If that doesn't help, you might wanna head over to the admin only live forum. They have a pretty quick response time. Sorry I couldn't be of more help

 

[jackmc]

Thanks Bandit, Great reference. I am going to try raising the PH. I've been keeping it at 5.8 but I am thinking Mg deficiency. I'll keep you posted.

 

[jackmc]

Adjusted PH to 6.0. Definitely the same deficiency as my first grow. I'm going to sit it out and see if the change of PH stops the spread.

 

[NekoSempai]

Hey man, sorry to hear about the deficiency. Hopefully everything gets resolved. I don’t really know enough about hydro to help but, Ill send my your way my friend.

 

[jackmc]

Thanks Neko, I am going to try PH adjustment 1st then reducing the photo period if the PH adjustment does not yield results. :wg's Cool:

 

[NekoSempai]

Thanks Neko, I am going to try PH adjustment 1st then reducing the photo period if the PH adjustment does not yield results. :wg's Cool:

Hey! So, if I might ask. What would be your reason for reducing the photoperiod? How many hours of light are you running it on?

 

[ThaGreenBandit]

Hey! So, if I might ask. What would be your reason for reducing the photoperiod? How many hours of light are you running it on?

I'm curious about that, too. What is the reason for reducing the photoperiod? I've read of people going 24/7 all the way through with successful grows

 

[jackmc]

Hey! So, if I might ask. What would be your reason for reducing the photoperiod? How many hours of light are you running it on?

Hi Neko, I am running a Mars II 700W (300W draw) LED light 20/4 only 26" (66cm) above the top of my res. I am guessing that I keep seeing this deficiency show up because of the intensity of the light and the rate of the grow. I could be completely wrong but I am thinking that if I slow things down some I may address the deficiency. What do you think? Thanks for looking!

 

[Bilbo]

That's the kind of logical deduction that does credit to your avatar jack!

 

[NekoSempai]

That actually does make sense, because I was actually just reading something related. It was from another forum I believe. I ran across someone saying to load up on extra cal mag in reference to a higher wattage LED.

Personally I dont know but, if a high wattage LED does make it use up more cal/mag. Then it may have an effect in theory. Would be interesting to see if it did.