good lighting info.

Reefer420

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wow - I never realized this before...

"Another thing to keep in mind is that the higher the K rating, the deeper the light will penetrate in to the water. Hence why the ocean looks blue."


so a deeper tank should use a higher Kelving bulb, huh?
 

Deanos

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Reefer420 said:
so a deeper tank should use a higher Kelving bulb, huh?
Most reefers address the tank depth issue with more wattage. That way, it doesn't matter what temperature (K rating) the bulb is. :idea: A 400w bulb will allow most of its light to reach the bottom of a 24" tank.
 

Reefer420

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but i think 400w 20k would be a little much for a 37g- even if placed 30" off the sand bed? Or do you think 250w is fine...

btw- sorry to keep asking that, but I keep getting mixed responses to that q! :scratchch
 

House of Laughter

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keep in mind, just because higher kelvin light penetrates deeper, doens't mean that the light that penetrates is effective enough to maintain animals.

ROYGBIV - note the last 3 - blue indigo and violet

House
 

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