First Time Grow>>NEED some opinions!!

Sluballin

Member
Watupp everyone!

I am currently 2 weeks in on my first grow and would like to hear some opinions on how to improve my grow. Any help is greatly appreciated, i am a noob and lookin for some good constructive criticism!

The grow box:

4'x5'x6' fully insulated with R-tech insulation board (walls are completely reflective)
6" in-line duct fan for exhaust with carbon filter on roof of box
7" passive intake hole near bottom of box
6" fan to circulate air.

The lighting:

1 400w hps grow light used for flowerin
1 400w mh grow light used for veg

The system:

A home made top-feed hydroponic system
400 gph pump
12 feed lines
10 gallon res with airstone and aquarium water heater
12 6" rockwool cubes
1 warm air humidifier

The nutes:
Fox farms Grow Big
Fox farms Big Bloom
Fox farms tiger bloom

So far in my grow i have successfully germinated all 12 seeds in some starter plugs and finally placed them into my system when they were between 3-4 days old. (I am not sure of the strain, i have collected seeds I found in my bags lately.) The plugs drop right into the 6" rockwool cubes and were immediately introduced to the 400w hps light at about 3' away from the babies. I have been leaving the light on 24/7 for the first 2 weeks. The room temperature is constantly upper 70's and i have been using the humidifier constantly. I have a humidity meter but i am not sure if its working correctly.

So far the plants are growing OK i guess...

For the first week i did not use any nutes what-so-ever just used PH'd water in my res. As far as a feeding schedule, i had the timer set for every 3 hours a 15 minute watering, so 8 times a day. (Kid at hydro store told me this was a correct amount.) at the beginning of the 2nd week i have used a low dosage of the fox farms grow big and big bloom as according to the fox farms dosage chart. Lately i have noticed the leaves having some drooping, even a little yellowing in some spots. Thinking this was over watering, i lowered the watering schedule to 3 times a day for 15 minutes. STILL drooping after a week...

My questions:

1. Is the 400w hps too strong for them at such an early stage? should i use florescents first?

2. What is the correct height for the light fixture during the growth stages?

3. Is my watering schedule too much? How often should I water using the system i am working with?

4. What do you guys think of my setup?? How can I improve it?

Thanks for your help guys!!!!!

I will post some more pics of the entire setup soon, I just took a few quick with my phone so you can get the idea...
 

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Sluballin

Member
I will post some more pics of the entire setup soon, I just took a few quick with my phone so you can get the idea...
 

GrowingfortheGold

New Member
I have never used top feed. I've only used ebb and flow buckets. However for comparison I water every 6 hours for 15 minutes. (4x a day). The plants will drink more when they get bigger. Clean setup tho nice.
 

Sluballin

Member
Great man thanks for your feedback! Any word on why they are drooping? I am running it 3x a day currently in fear of i was over-watering...
 

Sluballin

Member
Lately i have noticed some algae growing on top of the rockwool cubes. I heard that placing Styrofoam plates on top of the block and around the root will prevent the algae from growing. Anyone tried this?
 

Sluballin

Member
the R-tech insulate board already has a reflective side on it.. I read it was perfect for grow rooms and it was fairly easy to construct
 
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