Quote:
Originally posted by cybrsufr
One thing to consider about XM 10K's is that they have been shown to produce the Strongest PAR value of any bulb out there. In simple terms, with a 18" deep tank you might need to raise the light or place corals lower in the tank and gradually over the course of several weeks raise them up as they are probably getting light shock and bleaching on you.
|
is there a standard of measurement that helps determine how high to raise my light then, as stated it is already about 16inches off the water. don't mind going higher. Have been thinking about switching to a 20k bulb anyway, just to see if for some reason this is why, most of the sps that i have bought have come from bluer tanks, i have tried the acclimation from lower in the tank. so about all my other corals, if i switch do i then have to acclimate them to the new color spectrum----how?