Question about LED lighting percentages

[Fat_cat]

Hi, I am running LEDs for the first time over my tank, and I will be keeping SPS. I kept SPS corals in the past in another tank, but I always used T5 HO lamps. The LEDS are Ocean Revive t247.

I added a frag a few weeks ago and made the mistake of turning the percent value for the LEDs up too quickly and bleached it out. It is recovering now under low percentages (30% blue and 25% full spectrum). I also added two other frags that are doing very well under these same low percentages.

My question is-- is there a reason that I should turn the percentages up at all? Will the SPS grow slower with it turned down? I don't want to risk another bleaching event if it can be avoided, especially since I will be adding new frags every few weeks or so. But I also don't want slow growth due to lower light.

Thanks

 

[mcgyvr]

Well.. sure... not enough light can certainly be a problem with corals just as much as too much light can..

But that doesn't necessarily mean that 30%/25% is too little light.. It could be too little or maybe its enough..
Really to have a "decent" answer you would need to see the PAR numbers available to that coral in your application/setup.. But even so that number may not really tell you anything concrete..
Unless you compare to known "good" PAR levels for that specific coral.. but even PAR doesn't tell the whole story as "proper spectrum" really isn't included in that..

So.. Its an experiment you will need to perform.. In general though.. SPS can take a crap load of light if you work them up to it and should/will show better growth because of that..

Your best bet will be to see what others with that light and your tank size run and go from there..
Really no "easy" button with lighting..

And of course light isn't the only puzzle piece..

 

[Fat_cat]

Thank you! I thought maybe I was overthinking it