what's the length of your photoperiod?

[Eznet2u]

I guess I'm in the minority. I start the actinics at 7:30a. MH1 comes on at 9:00a. MH2 comes on @ 11:00p. MH1 goes off at 6:30p. MH2 goes off at 9:30p. Actinics turn off @10:00p.

I will be shortening these both, now that winter is here. It mimics sunrise/set.

 

[noelskii]

6hrs White LED, 8hrs Blue LED.

i know this thing is like 6 years old... :redface:

 

[Awibrandy]

9.5 hours PC 9AM to 9:30PM
5 hours MH 4PM to 9PM

 

[mazon56]

Is it ok that im running t5 on for only 6-7 hours I did this because of algae

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