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theangrycrab
Sun, 13th Sep 2009, 03:38 PM
How long do you leave your metal halide light on? I have it set for 4 hours. Is that enough? Thanks.
Squiers007
Sun, 13th Sep 2009, 04:21 PM
No, I would run them for more like 8hrs. a day, but I wouldnt go much longer than that due to heat issues unless you are running a chiller and then you could probably get a way with 9-10hrs. but 8 is the norm
Ping
Sun, 13th Sep 2009, 05:14 PM
My MH are on for 6 hours, and the supplemental VHO and PC 12hrs.
recoiljpr
Sun, 13th Sep 2009, 06:58 PM
My T5's are on for 12 hrs my MH (dual 175's) are on for 10 hours a day. With using an oversized canopy and a cheap walmart fan (thanks Kevin!) I have no temp issues running my MH 10 hours.
CoryDude
Sun, 13th Sep 2009, 10:14 PM
Actinics: on at 1030am
MH: on at 1230pm
MH: off at 7pm
Actinics: off at 1030pm

6.hrs mh/12 hrs vho's
ErikH
Sun, 13th Sep 2009, 10:44 PM
MH 12 hours T5 14
JoshOdphi
Mon, 14th Sep 2009, 12:54 AM
i keep my actinics on from 9am to 10pm
mh from 3 to 9
mikedelgado
Mon, 14th Sep 2009, 07:09 AM
t5 actinic on for 12 hrs mh on for 5
ballardjr2000
Mon, 14th Sep 2009, 12:39 PM
8 hrs on my 12g nano, 70w MH, and 8 hrs on my 90g T-5's