J
1.5-2x brighter depending on reflectors mostly. Fresh bulbs will be 1.5x output to start, tapering down to about regular after 3 months.
I'm not sure about the spectrum on your bulbs in specific, but 12,000k is heavy blue/green in general missing a lot of prime spectrum in the higher end.
Unless you happen to have a PAR meter, I'd say do what looks good then adjust for intensity as your tank responds.
What size of tank are you running now by the way?
I'm not sure about the spectrum on your bulbs in specific, but 12,000k is heavy blue/green in general missing a lot of prime spectrum in the higher end.
Unless you happen to have a PAR meter, I'd say do what looks good then adjust for intensity as your tank responds.
What size of tank are you running now by the way?
J
james.folsom
Guest
Sounds like they've got a PAR meter; they'd certainly want one for what they're doing.
That lighting is overkill. You could've done just as well with a couple of stock T8's. There's nothing like an overpowered light as an excuse for a bigger tank though
That lighting is overkill. You could've done just as well with a couple of stock T8's. There's nothing like an overpowered light as an excuse for a bigger tank though
J
james.folsom
Guest
This should help. Help your eye lids feel heavy. Find some toothpicks.
http://www.barrreport.com/showthrea...ht-for-red-plants-1.8W-gal-see-what-you-think
http://www.barrreport.com/showthread.php/6972-The-light-limiting-growth-management-method
http://www.barrreport.com/showthread.php/7002-Why-dont-use-actinics-in-the-planted-tank
http://www.plantedtank.net/forums/lighting/105774-par-vs-distance-t5-t12-pc.html
When you talk to the guys doing the algal biodiesal work, find out how much light they are using to grow algae. I have been told that they can almost grow the stuff in the dark now.
Sorry I'm not more help.
And a few other interesting links,VaughnH;38789 said:
http://www.barrreport.com/showthrea...ht-for-red-plants-1.8W-gal-see-what-you-think
http://www.barrreport.com/showthread.php/6972-The-light-limiting-growth-management-method
http://www.barrreport.com/showthread.php/7002-Why-dont-use-actinics-in-the-planted-tank
http://www.plantedtank.net/forums/lighting/105774-par-vs-distance-t5-t12-pc.html
When you talk to the guys doing the algal biodiesal work, find out how much light they are using to grow algae. I have been told that they can almost grow the stuff in the dark now.
Sorry I'm not more help.
james.folsom; said:
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I'd run no more than one bulb in that fixture, or raise it higher.
Current makes a 10,000k bulb if you want something a little more standard looking.
Current makes a 10,000k bulb if you want something a little more standard looking.
J
james.folsom
Guest
Java fern and anubias always seem to respond slow. C. wendtii laying down is one I haven't seen. Short internodal spacing is a good result.
Reflectors would be a smart idea for them; higher output at a lower cost in replacement bulbs and energy. The reflectors would pay for themselves pretty quickly. If it's a matter of initial output expense, they'd probably be better off with even PVC sawed in half and painted a very pure white.
Reflectors would be a smart idea for them; higher output at a lower cost in replacement bulbs and energy. The reflectors would pay for themselves pretty quickly. If it's a matter of initial output expense, they'd probably be better off with even PVC sawed in half and painted a very pure white.
J
james.folsom
Guest
Interesting reaction; C. parva does it easily but I've never seen it in C. wendtii before under any number of light levels. The plant looks healthy enough.