About 2 months ago i got new lights, i was using 2 led bars from a fresh water planted tank it worked great but i wanted more blue light. I tried to make the change smoother by hanging the lights higher and changing the photoperiod of each led bar so now the blue bar is on more time than the white.
The white + the new blue bars are less powerfull than the 2 white lights i had before.
But the bubbles appeared last night after spot feeding the corals but im sure i didnt get bubbles down there.