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View Full Version : Clam owners with 400W MHs - How long is your photoperiod?


Leopard Man
07/10/2008, 08:31 AM
As per above?

Thanks.

a4twenty
07/10/2008, 03:55 PM
i run mine 11hrs

skinz78
07/10/2008, 04:30 PM
I run mine 10 hrs but I'm switching back to my T5 fixture due to increased energy costs.

Jayreefer
07/11/2008, 12:01 AM
8 hours here.

Leopard Man
07/11/2008, 12:17 AM
Wow, so far you guys run them pretty long. I ran mine for 3 hours for about 4 months and they (my croceas) started fading in colour. I got 400W 14k. Guess I need to up the photoperiod.

Would 6 hours be ok? Or is 8 better?

a4twenty
07/11/2008, 04:40 AM
i would think that only 3 hours is no where near enough, i would add an hour a day ( or two ) until you reach 8 hours or more. crocea's live very near the surface and need / love lots of light, the fading in colour is probably from lack of light.

Leopard Man
07/11/2008, 06:12 AM
Thanks, will add one hour a day till I reach 8 hours.