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narcoticrex
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Registered: 01/20/11
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Last seen: 12 years, 10 months
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Help with humidity in GH
#13993768 - 02/20/11 01:24 AM (13 years, 14 days ago) |
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I have a greenhouse with a coolmist running 24/7 in it. I am testing it out right now, and I punched a bunch of holes all over it, for a "shotgun greenhouse" effect for FAE. It held humidity over 90% all day.
I fell asleep and woke up 8 hours later, and my humidity is 75%. there is still water in the resevoir. I cant discern why my humididty dropped and wouldnt come back up.
Any ideas? Should I cover more holes? Is the coolmist resevoir too low, maybe it only holds 90% when the resevoir is full?
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ProfessorPinHead
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Registered: 07/09/10
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Re: Help with humidity in GH [Re: narcoticrex]
#13994090 - 02/20/11 03:12 AM (13 years, 13 days ago) |
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Yea, You don't really need the holes....
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slapphappypill
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Registered: 11/07/10
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From what I understand, you should start without holes, and then make holes as needed to regulate FAE
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bbt0009
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Check out my pics man. I have a martha sitting in a tub with a coolmist running 15 minutes of every hour. I have a diamond shape hole on all sides of the GH at every level. Even on the roof. I find that the RH varies greatly depending on whether or not im using the martha. So if there aren't any tubs or trays in there then it drops quickly. If my shelves are full the Rh is always high and I dont need to stuff any holes with polyfill
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RogerRabbit
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Registered: 03/26/03
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Re: Help with humidity in GH [Re: narcoticrex]
#13994614 - 02/20/11 08:56 AM (13 years, 13 days ago) |
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Where is the coolmist at? Humid air is less dense than dry air, so it will float up to the top. Be sure your coolmist is on the floor of the unit for good penetration.
I usually cut three or four holes in a mini-greenhouse and/or leave the door open slightly for fresh air. You can also use a knife to cut slits in the sides.
As already said above, when it's full of substrates, the humidity will be higher. RR
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