Got up this a.m. and it's white lights are out. Changed all 4 bulbs last night and I think they were working fine. But now that I think about it, maybe not. I thought they looked a little dim but figured it was the new coral plus I added. Guess not.

This is the AquaticLife 4x24w t5ho. It has digital switch with 3 settings. Number 1 setting is the one that's out and it's also the one I use to run the whites.

I thought that maybe I got a couple bad bulbs. Switched em back out for the new/older ones and when I turned it on, 1 bulb blinked but did not remain on. The other did nothing. Tried it again, switching back to the new bulbs. Turned it on and the one blinked again but didn't remain on.

Is this a possible ballast issue? One other question. I can run 2x bulbs but how long am I looking at before my corals start to feel the pinch? I'm running 1x aquablue special 12k and 1x blue plus. Or should I run 2x white and forget about the blue for now?