HI,
to elaborate, I found loose end caps on a few bulbs, and exchanged them, but the center bulbs still won't turn on. The actinic are working fine now.
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90 gal SPS display+65 gallon mixed reef
GEAR: Korallin calcium reactor, bio pellets, digital aquatics controller, Tunze ATO, MP40, 4 x Tunze 6105 w/controller, Reef Octopus Xp3000 ext, 2x250w MH, Futura LED.
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