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Offlinenickc
Psyche-dult
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Registered: 04/10/09
Posts: 559
Loc: Melbourne, VIC
Last seen: 3 years, 3 months
Need help getting martha GH tent above 80% RH
    #26877347 - 08/12/20 06:46 PM (3 years, 5 months ago)

Hi all

I've recently set up my first Martha tent for fruiting, and am having trouble keeping it over 80% RH.

I live in Melbourne, Australia where it's very dry and currently winter, so I have the GH in my living room.  The temp stays around 20 - 23C during the daytime, and drops to 14-16C at night.

The set up is as follows:

- Ultrasonic humidifier plumbed to the top of the tent, operating 2mins on / 10mins off on repeat cycle timer (highest setting on humidifier)
- Diamond holes about 1" long on each level for FAE
- 2" hole behind fan mounted on the bottom to draw fresh air in
- 3" of perlite on base
- Tray of perlite on 2nd shelf about 3-4" deep and hydrated regularly
- Fan runs most of the time to evaporate moisture and increase RH

What could I do here to raise the humidity?  2 days ago I left the fan on all night by mistake and the RH had raised to 88% however now I'm struggling to get it back up, even with the US operating 4mins on / 8mins off.

I see on all the teks online to use a Vicks Cool Mist inside the chamber as well, however they aren't sold outside of the USA and I'm wondering whether I need a wicking humidifier to supplement the US.

Pics of my setup:





Thanks in advance!


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