Hello,
Approximately 9 months ago, I purchased 2 48" Coralife fixtures, each containing 2 T5 bulbs - one 6700k and the other, Colormax. I realized after buying them that this amount of light was sort of overkill for a 75 g tank, so I generally only run one fixture at a time (and even with that, my plants and algae go crazy).
Anyway, 2 weeks ago the 6700k burnt out on one fixture and the Colormax does an annoying humming/flickering thing. On the other, both bulbs are still going, but flickering to the point of a seizure-inducing strobe. Is it normal for these bulbs to die so quickly (and seemingly all at the same time)? I don't know a lot about fluorescents - could something else be the problem? So far, I've tried wiggling them, but to no avail. Help, please!
Thanks,
Heather