light requirements for plants
Bright light plants - 2.5 -4 watts/gallon ---> 10-12 hours a day (minimum)
Medium light plants - 1.5 - 2.5 watts/gallon ---> 4-6 hours a day (minimum)
Low light plants - 1 watt/gallon ---> 2-3 hours a day (minimum)
Source - online fish forum
Just so your informed WPG doesnt mean anything. Because theres different light fixtures. For example compare watts of leds to florescent bulbs, you have 200watts or florescent the wpg rule means you need 200watts of led? Waaaaaaaaay to much
Thats just one example and also even something as simple as a reflector can make that rule obsolete!
Anything with high par readings and lumens needs co2 or your begging for algae.
And OP your problem was most definitely the spectrum of your bulb 2800k is perfect for algae, this is the temp i use with my algae scrubbers.
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Cheap way to decrease nitrates and keep your fish healthy:
http://monsterfishkeepers.com/forums/showthread.php?t=504763 [/QUOTE]
