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I thought it was 400 my bad. 40 good 400 bad.

Your tap water is kinda hard. I rarely even look at my EC. I paid $350 for trimeter,and a $50 ph&items meter would have been good enough. You should look into a RO filter,that's always a good investment.

They look fine to me. I wouldn't worry about the roots knotting up. By the time you harvest you will wind up with a root mass the shape and size of your buckets. 900 ppm seems a little high for that stage of growth.

When I first started that's kinda what I did. Only I had two rooms and moved the light back and fourth. A lot easier than moving the plants.

No, if it was going down to 37 degrees then yes. Anything above 40 you're safe.

I was planning on getting 2 300w cxb3590 six cobs, to cover a 3.5 x 7 room. I'm thinking 9 cobs for 4x4

I just used 8oz foam cups filled with seedstarter mix. After about a week vegd in there, I would wash the dirt off the roots and transplant into my hydroton. Gives you a little room for grower error. I never lost a seedling yet.

That would be what I'd buy. 3500k is Whole cycle. I'm saving up now and hoping the prices start coming down.

I clearly said pulling extracts heat better, atleast in my situation. Sometimes in the winter I run no fan at all. If your fan dying kills your plants your lights are probably too close.

I've done both ways, pushing and pulling.currently I'm running 8" filter,6" ducting, light,ducting,light,ducting,fan, ducting exiting outside. I think pulling extracts the heat better.

They're like $50 apiece and supposed to put 70,000 lumens.

Just wondering if anyone has any feedback on them. I'm thinking about buying a couple to try.

When you flower you're gonna need to block the light coming in that window.

How big are your containers? I find 8 plants are my limit, and I'm using 2 600w hps's I usually just run 6 plants. If you keep em small and don't top them you should be ok. I pull about 3-5 oz a plant in 5gal ebb&flow buckets.

You ph should be between 5.5 and 5.9. I use 40 gal in my Rez too, for veg I use 200ml micro,grow and bloom, also calmag,silica and hydroguard. In flower I use 200ml micro,400ml bloom,200ml liquid kool bloom,40ml Floralicious plus.

I would change every 7 days, a lot less problems that way. Topping off with just water in between. That's how I was taught. If you're not chilling everything an your Rez temps get above 75 you're just asking for trouble.

Take a netpot in the store. All that stuffs on the shelves. Ain't like they sell netpots and u shoplifted it.

CG puts out some good products. After seeing those pics, I'm leaning towards popping a pack of rainbow jones,I got stashed away. Looking good very good indeed!

Flushing is a highly debatable subject. That being said I flush a minimum of 5 days usually 7 days. If it's an 8 wk strain I start flushing on day 49.

You know you're a grower, when your hydro supplies are delivered by an 18 wheeler.