Two weeks ago tomorrow I pulled two Kessil A360 WE Tuna Blues and installed two Kessil AP9X. I had been running the 360s at a max of 100% for three hours during my 12 hour lighting schedule, the rest was ramp up, ramp down. Everything was at least fine and most of the inhabitants were thriving. (I have a Waterbox FRAG 105 mixed reef - more or less equal amounts of LPS and SPS and a zoa garden.)
One AP9X is 2X the output of one 360WE so I duplicated the light schedule and cut the intensity in half throughout.. Even with that, I baked some montis and one jack-o-lantern lepto. I have a Seneye and (stupidly) waited until the damage had been done before using it to measure my new PAR levels. HOLY CRAP! Those things are emitting some serious photons (see image below), and bear in mind those PAR readings are at an intensity of 37%. I wound up making my peak intensity 22% - we'll see how that works out fpr a couple of weeks prior to making yet another change.
So word to the wise. If you're upgrading lighting, monitor PAR before removing the old lights and again when the new lights are installed. Not only is it a financial setback to replace the corals, but I killed the animals in my care, which really bugs the crap out of me.
One AP9X is 2X the output of one 360WE so I duplicated the light schedule and cut the intensity in half throughout.. Even with that, I baked some montis and one jack-o-lantern lepto. I have a Seneye and (stupidly) waited until the damage had been done before using it to measure my new PAR levels. HOLY CRAP! Those things are emitting some serious photons (see image below), and bear in mind those PAR readings are at an intensity of 37%. I wound up making my peak intensity 22% - we'll see how that works out fpr a couple of weeks prior to making yet another change.
So word to the wise. If you're upgrading lighting, monitor PAR before removing the old lights and again when the new lights are installed. Not only is it a financial setback to replace the corals, but I killed the animals in my care, which really bugs the crap out of me.