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You need a 150mm blower that delivers about 200CFM. Prices vary, shop around. The 'duct fans' as found at hdwe stores are cheap but not terribly efficient nor durable due to cheap stamped impeller blades and sleeve-bearing motors. Look for fans with ball-bearing motors. I'd use 6" (150mm)...

You should not be able to shake any water out of a cube which is just damp. If you were using the same size and type of cubes I am, I could give you very precise watering information, but your cubes are a bit different. I'm using plastic wrapped 40mm cubes. They weigh 5g dry and 20-25g when...

You will either need an aircon unit or you will need to ventilate the space, it's that simple- no way around having one or the other. I don't know whether you don't believe me or you're trying to fool yourself, but if you set up an unventilated/un-airconditioned op with 2kW of light, you won't...

Woomeister, I think you may need to revisit your findings. What we're after when we're sharing information amongst many folks is stuff that anyone can replicate. I know that if some method only works in my grow room, I'm not describing it adequately or I've gotten something else wrong...

Cooltubes must be able to source cooling air from outside the grow room airmass and dump it outside it as well. If you can establish the airflow necessary for cooltubes, you will also be able to ventilate the room. So, you germed your seed, got a roughly 1/4" long...

heh, that is one of the VERY few situations when I'm happy to be 195cm tall and a bit over 110kg. Scary fiancees often are a bit deferential when a land giant lumbers by, blocking out the sun. :D The rest of the time, being a walking wall is just a right pain in the arse, notably in buying...

And how exactly are you going to get a timer operating your pump to twist these things around for you? Answer: You won't. It needs to be organised similarly to the animation, with a fill/drain and an overflow. What fitzy was suggesting was doing the fill/drain via the two holes in the ends...

It'd take some pretty big variables to get an oz/plant out of an aerogarden. For comparison's sake, here's what 1oz plants look like: The pictured SoG budstalks all yielded about 1z/ea. Grown with 1000HPS in cooltubes. About the only way to get plants like this out of an aerogarden is to...

Most stoners can smoke the output of an unmodified Aerogarden in much less time than it takes to do the grow. You can get much better total yield and quality for the same if not less money, but you will have to do more than phone up a 1-800 number with your credit card number.

If you flower clones immediately after they set root, you get short plants which do not need fill lighting.

Your temps are moderating rather well, but when air cooled lighting sources its cooling air from inside the room airmass, room airmass temp stability can suffer. With cooltubes, we can have a fully separate ventilation system for the room airmass and the lighting, so a...

Your plants are quite small now. It'd make all the difference in the world to get the HPS in there ASAP. Looks OK for a plant raised so far under CFLs. You'll be pretty disappointed with the yield and density if you flower the plant with CFLs, tho. CFLs weakest point is flowering due to low...

No such thing as a bud that's way too dense. That's like finding a gal who is 'way too sexy.' :lol: If you're getting grey mould/botyritis, a sulfur burner will help stop it as will preventing RH from exceeding 70% and maintaining the plants in a healthy condition.

Good idea fitzy. A 't' with a couple of elbows would connect the fill line to the two channels and allow them both to drain. It may not drain fully to the channel floor level with the fill/drain conns through the side, though.

fair go, fdd, I see some of the most unbelievable shit on this board some days. :roll: Adding CFLs to HPS is like adding a model airplane engine to your 747. Lighting type will make absolutely NO difference whatsoever to the sex of the plant. Anyone who thinks so is simply mistaken. It's the...

Does sound like a very good price. If the hoods can keep their cooling air flow separate from the grow rom airmass (with inlet and exhaust ducting) and remain cool to the touch, they should work pretty well. Far too much! Prices vary, but I've seen them from $160-200/ea. Around $60-70. How wet...

I'm not so sure that will make a good flood tray. It looks like it has two channels that are not connected by any cross channels. If there's no cross channel connecting them, if you put the fill/drain fitting through the floor of one of the channels, the tray will drain but the other channel...

I don't know what a vortex is- is that a brand name? Air cooled hoods don't flow air as well as a cooltube; their metal bodies can heat up from radiant IR as well, allowing some lamp heat to convect into the room's airmass, defeating the purpose. If your hood remains cool enough to lay your...

Who suggested vitamin tabs as nutes, AB? That's a scream. :lol: I'm sending Stoney an email about that right now. :D

The stuff you're referring to is brand named 'Oasis.' Rockwool slabs or cubes would be an acceptable substitute.