[dfish2077]

Hi yall i was wondering if an 420 actinic blue light will work as good as a 10k bulb for plants?

 

[Raymond S.]

As an extra bulb, but not instead of, if that is the only bulb.
http://www.plantedtank.net/forums/showthread.php?t=184368
http://www.plantedtank.net/forums/showthread.php?t=594650
Funny how two charts have slightly different results. These each have a plant light absorbing range on them.
A 6700K AND a 420 or 460 would be a good combo as would a10,000K AND a 420/460.

 

[dfish2077]

I have a 10 k and was a extra 420 actinic the other 10k burned out

 

[jeffkrol]

As an extra bulb, but not instead of, if that is the only bulb.
http://www.plantedtank.net/forums/showthread.php?t=184368
http://www.plantedtank.net/forums/showthread.php?t=594650
Funny how two charts have slightly different results. These each have a plant light absorbing range on them.
A 6700K AND a 420 or 460 would be a good combo as would a10,000K AND a 420/460.

It would make a great experiment..and I predict very short bushy plants.. BTW those charts can vary by solvent used to extract the chlorophyll...

 

[dfish2077]

That would neat i have eight bleheris one amazon broadleaf and two anubias

 

[dfish2077]

I have a 10 k and was a extra 420 actinic the other 10k burned out