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Discussion Starter · #1 ·
i think i read how to calculate the light watt with tank size somewhere. i just couldnt find it. please let me know how to calculate it or give me the formular. if it's 5.5-gal tank, what is minimum watt pc i need?

thanks,

Tim
 

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all you have to do is take the watts that your lights output and divide it over the size (gallons) of your tank soo for example if i have a 10 gallons fish tank with a 15 watt fluorescent fixture thats 1.5 watts per gallon not too hard but then theres always exceptions...
 
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