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I would be really worried about heat in an attic in the summer. I would think the best way to do this would be to build a smaller room EXTREMELY well insulated with your AC units cooling that smaller space. I would also worry about the heat signature up on that roof with infra red cameras on...

I have a steel cabenit 36" wide 20" deep and 70" tall. THe caninet can hold in temps really well and I want to keep things cool. I have a 171 CFM fan, 200 CFM Phresh filter and 400 W HPS lamp and want to use some CFLs as side lighting. How should I hook up the exhaust system? Here are the...

I am new to all this and plan to put my seedlings into their baskets in a couple weeks, when I can see the roots through the Rockwool. I plan to follow the guide on the Dyna-Gro plan and therefore will dump my water in each bucket weekly and swap it out for another ready to go bucket all PPMed...

How old is that flopped over seedling?

I germinated my seeds about 2 weeks ago and they burst through the Rockwool about a week and a half ago. One has still yet to pop off its seed husk and the other has the 2 round leaves and the cerrated leaves are almost microscopic with one of the round leaves turning brown on the tip. They have...

Thanks for the info, I am trying to soak up all the info I can get. Good info on the rubber made. I got a strip ph litmus paper. I do have a great hydro store close by, so that all works out well. Dyna Gro is a 5 part system but that said, what other nutrients might I need and how do I know I...

This is my first ever grow. I have been reading alot and trying to gain as much knowledge as I can. Here is my set up: 2 net pots in a Rubber-made container I painted black to avoid algi growth and one 5 gal. bucket with a net pot. I wanted 2 containers, in case I F-up on one since I am new and...

Thanks. When you say "Day 7" is that 7 days from the seed breaking open or 7 days from breaking through the soil?

I have not found much material on the time from germination to veg and am looking for more info on this period. I germinated the seeds a week and 2 days ago and they broke through the top of the Rockwool Cubes about three days ago or so. They are kind of not really doing much right now. The...

I am worried about that heat, that is why I am not going HPS. It is basically doubble boxed because that cabenit is in another area where I am thinking I can open it up a little during the flower period to let a bit of heat out.

I am kind of rethinking and picked up some 40W 2800 lumen and will dubble them up. I am still thinking of trying LED, but they are big $$$.....maybe a mix of LED and CFL come flower time. Again for me it is about heat and safety. I am growing in a locking steel cabinet 68" tall 20" deep and 36"...

I posted this in the CFL area and am not sure how to delete it, so if a mod wants, remove this. I am not trying to multi post.

I have been doing a lot of reading and know the rules of thumb on light. I have a 20" X 36" or 5 SF area with 3 plants in a deep water bubbler. I know the 5000 lumen per SF rule. I know people po-po CFL growing and it would be far easier/cheaper to use a HPS lamp but I really do not want to go...

I have been doing a lot of reading and know the rules of thumb on light. I have a 20" X 36" or 5 SF area with 3 plants in a deep water bubbler. I know the 5000 lumen per SF rule. I know people po-po CFL growing and it would be far easier/cheaper to use a HPS lamp but I really do not want to go...