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I have a 300-watt viper Spectra box light it's above a 90-gallon tank if anyone else has this light Tell me what you have your light settings as I think I'm having trouble still trying to tune it in.
 

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I have a 300-watt viper Spectra box light it's above a 90-gallon tank if anyone else has this light Tell me what you have your light settings as I think I'm having trouble still trying to tune it in.
first any "300W" Viparspectra isn't 300W


Actual Power Draw: 130W±3% at 120V

Second which "color". They make aquarium (in very blue centric) and plant grow lights.


Third best to describe your trouble


Fourth: What are your channel settings


Fifth how high up and do you still have the lenses on?


Sixth: Have you ever measured the PAR?


All the above is somewhat inter-related..
 
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