Thanks for the responses guys.
Quote:
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One of the biggest mistakes people make is too many fish, too little light.
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I think that might include me.
I have a 50 gallon tank with 8 fancy goldfish (the recommended amount is 3-4).
2--18'' bulbs (came with my tank from petsmart

); each 8,000K Full Spectrum daylight 15W T8. My tank gets some daylight, so the light is only on 5-6 hours a day during the evening hours.
I also have an airpump for a hydrosponge IV and a moving bed filter (kaldness k1 media).
Balance sounds very complicated...and probably not possible with what I have now.
Maybe I shouldn't use a DIY system and should probably use excel in combination with flourish. What do you think, John? Thanks.