Coral bleaching under LEDs, check out the pics!!

[Reefin' Dude]

your alk is to high. bring down to 7.

your lights are not any more bright, than the tropical sun at noon, but your alk levels are way higher than any NSW levels.

G~

 

[PrangeWay]

This is also why PAR meters are not accurate with LEDs because they are more sensitive to the green to red spectrum.

This isn't true totally true. Bascially the meter undereports blues a bit, but as long as you know the corrections and your led counts it's prettys imple.

http://www.apogeeinstruments.com/aquarium-par-meters/


LED Type
Error [%] for Apogee Quantum Sensor

Cool White
-4.2
Neutral White
-6.1
Warm White
-9.9
Blue (448 nm)
-10.7
Green (524 nm)
5.8
Red (635 nm)
4.7
Red, Blue
2.7
Red, Green, Blue
3.5

 

[Chicago]

tagging along here.. did your corals come back?>

 

[dcantrall100]

Tagging along as we'll.

 

[badstraw]

Ill post new pictures in a couple of days

Thanks guys ..