MH flickering, any ideas?
My lights have begun to flicker recently and I don't know why. It kind of dims and looks bluer when it does this. It does it quickly like a flicker but has also stayed dim for some time on occasion. It usually does this once the balast has warmed up. I'm running an XM 20K 400 watt SE, on a Galaxy balast. It's also on a digital timer, that I've had for several years. Any thoughts from you lighting guru's out there?
Thanks,
Danny
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THE BARQUARIUM:
55 gallon cube - 50 lbs LR - ASM G3 skimmer - 30 Gallon sump - 22 Gallon refugium / frag tank - 4x 24 watt HO T5's - Mag 9.5 return - Pin Point PH monitor - 400 watt XM 20K MH in Lumenarc reflector - Dual stage GFO/NO3 media reactor - 6 stage RODI auto top up -Wavemaster Pro running 3 Koralia 2's.
Fully stocked with fish, corals and usually some fine scotch
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