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For what the info is worth, I am currently running on the 150 gallon
tank four 96 watt CFs (6700k variety). I had been running an additonal
110 watts but heat is an issue in the summer months.
CO2 is about 20 ppm early in the day via pH-KH calculation, although
the Hach test puts it closer to 30 -- by the time you compund the
margins of error, this is not a surprising difference.
The fish stock is heavy but nitrates never measure higher than 10 ppm.
When I try TMG with K the next time, I'll crank up the CO2 a bit.
Thanks for the comments, Tom.
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