mat692 Posted July 4, 2006 Report Share Posted July 4, 2006 will 4200K bulbs be good for growing plants? Quote Link to comment Share on other sites More sharing options...
DiverJohn Posted July 4, 2006 Report Share Posted July 4, 2006 Need a bit more info Mat. But IMO: If Metal Halide Bulb then probably too low. If Flouro tube then almost certainly too low. And it will be worse if the tubes are more than 6 months old Its not so much that plants wont grow, but if you have an imbalance in nutrients (too much) then you may find the algae grows a bit better! HTH John Quote Link to comment Share on other sites More sharing options...
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