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Yeah that one has been on the outer edge. I'll start rotating them and see if that helps. The light is about 2.5 feet away since I haven't set up the venting yet. I haven't gone for the ph meter yet because I read that they aren't easy to calibrate and don't maintain consistent readings...

Oh and I'm using a ph indicator and shooting for 5.8 so I try to keep it a slightly dark yellow.

Water temp is usually in the high 60's and I'm using a 600W light. It's a SOG grow so I started them flowering at about 9" and I've been cutting all branching off the lower third of the plants. I'm copying Al B. Fuct's growing style for the most part.

bumpination

Thanks those sites seem pretty useful. I still have no idea what's wrong with the leaf in the first picture though, it doesn't seem to match any of the deficiency pictures. Also, I don't know how my purple stems could be from a phosphorus deficiency since I'm using flowering nutes at 1400ppm...

I'm trying a SOG grow in a 2x4 flood table. Everything is looking pretty good so far except for a few funky looking leaves. Hopefully you guys can help me diagnose them. Some info on the grow: The strains are Bubba kush, bubblegum, and master kush. Using tap water that comes out a 500ppm (San...

So no new air is brought into the room during the day? Does the CO2 turn off at night? Beautiful grow room btw.

I'm trying a SOG grow in a 2x4 flood table. Everything is looking pretty good so far except for a few funky looking leaves. Hopefully you guys can help me diagnose them. Some info on the grow: The strains are Bubba kush, bubblegum, and master kush. Using tap water that comes out a 500ppm (San...

That thing looks sweet (now if I could only find that $700 I left lying around:-P). What else do you need to hook up the CO2 tank to that system? Should I set this up so that the filter is just sitting in the room with exhuast running out of the room and a passive intake somewhere? If I was...

CO2 + water --> Sugar + O2, look familiar?:grin: Can't you set up CO2 systems that will maintain a constant 1500 ppm? I'd assume there would be a way to shut it off at night too. Is a sealed room not the most effective way to use CO2? I was assuming I'd have the lights aircooled...

Could something simpler and less expensive like an air purifier do the trick? I'm assuming that if I wanted to buy a scrubber I'd have to buy another $80 fan too.

bumpalumpin

I've been using it in my flood table for about 4 weeks and the plants look pretty good for the most part. Some of the leaves look a little funky but I'm hoping that's because I don't have the nutes and ph down yet. Anyone else using really hard tap water?

Is there enough calcium in tap water? Mine comes out at 500ppm (San Diego).

My plants are flowering now and I am using botanicare bloom nutrients along with their liquid karma. They also have a Cal/Mag product that I'm thinking about using. I'm using tap water though, so if I just add some epsom salt will I have these two nutrients covered?

There's no need to avoid photoperiod plants. I don't see how they are much more difficult. Just switch the photoperiod to 12/12 when you're ready - remember that plants can double to triple in size after you switch to 12/12. Upgrade from those CFLs as soon as possible though. This was the...

You're asking if that plant is screwed? :wall: I'm pretty new to growing myself, but I've definitely seen plants that were less screwed than that poor girl. Better luck next time.

It will definitely give you more colas which seems to equal more bud. I've heard that some strains do better with it than others, but in my experience it definitely doesn't hurt. It is stressful for the plant though, so its better to do it as early as possible, preferably in the veg phase...

I need my air cooled light to be completely airtight and I can see that there are some gaps where the hood meets the glass. Any products you would recommend or will good old duct tape do the trick?

I was just talking a guy at my local hydro shop about using CO2 in an airtight room. He told me that asside from venting my lights (which won't affect the air in the room) I would need a carbon filter inside the room to "clean" the air. He said that this is to clean out something (I think he...