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Jalex's 400w HPS Grow Journal

jalex

Member
Howdy!

My 3rd grow, first one where I had the cash to invest in completing my setup with ventilation, filter, and other goodies.

Using:


  • 400w HPS magnetic ballast/bulb

  • Sunleaves auroa reflector with lens/flanges

  • 435cfm inline centrifugal fan w/ variable speed fan controller

  • 4x4x7 mylar grow tent

  • Fox Farm Ocean soil w/ some sunleaves soil sweetener lime(as of today....Never trying a cheap one again)

  • Fox Farm trio nutes
  • Generic small carbon filter, rated around 200cfm
  • Cheap Wal-mart humidifier + oscillating fan
I think my setup total ran me 800-900 USD as of date (bought light/ballast/bulb a year ago for first grows)

Started seeds off in the peat-moss pellets under two 40w florescent tubes, and transplanted into 1-gallon containers as roots developed.

Used some cheap soil I found at local hardware store, BIG MISTAKE. It had way too much clay in it and was infested with ants. I thought it may be okay at first, but coupled with starting the seeds in a closet before I had the tent completely setup led to some mold problems on the soil (little white specs where soil was touching air), along with development of quite alot of gnats.

The seedlings started to suffer from the soil holding way too much water, and a few of them had severe yellowing all over, and growth was at a near standstill (seedleaves and first single petal leaves for over a week w/o growth)

Eventually they started to grow some (very slowly) and I became fed up with the progress and repotted them into some fox farm ocean blend soil. I could tell the difference in the soil types immediately.

This is where my journal will pickup, comments on my setup are welcome, and will start to update after the seedlings start recovering from transplant shock.

Oh, at 12 plants at the moment. 8 from a very good bag of mid grade, 3 from a friends assorted collection of high-grade plants, and one silver haze. I do not have as much hope for the higher-grade plants as they may be hermaphrodite seeds.

Window A/C in room provides inside/outside exchange and cooling, tent uses passive intakes and plants stay around 75-80 degrees and humidity 50-60 (humidifier doesn't quite last the entire day)

Attached are a few pics of my grow, and the plants as they are just being transplanted.
 

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jalex

Member
Week 3 since germination, 1 week since transplant into Fox Farm Ocean Forest.

The seedlings took a few days to resume growth, but they are loving every minute now - highly recommend taking a trip to your local hydro shop for good soil, the cheap shit is cheap for a reason I have concluded. I am using my 400w HPS for vegetative, as I do have a florecent setup but there seems to not be a consensus on if HPS is bad for veg, so giving it a shot for the extra lumens.

There are new nodes along the base stem and the stems from older leaves, Exciting! I did kill off 4 runts so I could lower my light to 12 inches and still hit all the plants with a high intensity (air cooling is awesome! Last grow I had to leave the light 2 1/2 feet from the plants to sustain 85F)

They have actually started to smell somewhat, so I hooked up the ducting to the filter. However, I would love some input on airflow. My fan is a 6" centrifugal rated at 435CFM, and my carbon filter is a 4" rated at only 200CFM. My ducting setup as is has three 90 degree turns, and I have a HTG variable fan speed controller. With my 3 turns, and the dial at 1/2 max, am I still going to be pulling too much air thru the filter to allow all the air to be filtered? The filter itself would slow down airflow too I would think...dunno, working as is, worst case I tweak it at flowering till I get the right speed where I dont smell anything (I hope).

Till next time, :peace:
 

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jalex

Member
Bah, a bit of downtime, been fairly busy.

Update #3

Had a few problems between last post and now, but some regular nutes a little TLC boosted them up until I left for 3 1/2 days and came back to some water starved plants.

I have since watered and they are doing beautifully. I have 6 confirmed females and 1 that only has a single preflower that is undistiguishable, but I went ahead and switched it to 12/12 with the rest. Some of my best bushy plants were male, but they're a few nice females left. I was pretty disappointed to find my crappiest plant (very stretchy, just looks meh) was a female, but I had topped it a few weeks back and the side shoots really got going, so gonna see what I get.

My one stunted plant was my single named strain, Silver Haze #4. It is a beautiful female, but it has yet to push past a foot tall. It does have quite a few side shoots, so I am hoping for at least some decent bud off of it, even if it isn't quantity.

Posted are a few pics before I started to flower. Will be taking a few of my leftover females soon. Going to switch to flower nutes next watering, I gave them one more dose of veg nutes the day before they were switched to 12/12, and a plain watering since.
 

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