All SPS turn purple

[SmyrnaReefer]

I'm thinking they're telling me my standard bulbs that came with light are crap and that I should get better lights with different wave length parameters...any light suggestions??

 

[ChicagoReefOne]

Yeah your lights may be shifting in spectrum and the coral are responding, how long have you been running those lights? What are they? What intensity and temperature (light temperature?)

I can't really tell if you have MH or T5 or what so, we need that info.

 

[SmyrnaReefer]

12 bulb t5 fixture (6x39W per 3 feet) bulbs are only 3.5 months old, but are the ones that came with the fixture....

 

[fourts1]

What's the light temperature(color) ie. 6500k, 10,000k, actinic

 

[sanababit]

well put an ORA red planet frag in there and if it turns purple then theres something wrong or something good in there, depending the way you see it, i wish my acros turned purple, lol

sana

 

[orthokardia]

strout-
the color temperature of a bulb refers to the black body radiation temperature in deg kelvin. a back body refers to a perfect radiator so the black body specturm is the wavelength (color) distribution of the photons (light) comming from the radiator at a given temperature. it is important to know the temperature of a bulb is actually the manufactures subjective approximation of what black body spectrum their bulbs output is similar to combined with a little marketing for good measure. this is why a 20k (20,000 deg kelvin) bulb is usually more blue that a 10k bulb, but two 20k's from different companies will look different.

-bart