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Old 02-29-2012, 05:58 AM   #9
plantbrain
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Quote:
Originally Posted by Wyomingite View Post
High phosphates are the primary cause, but high nitrates also contribute. Cyanobacteria do not need much light.

WYite
Now let's mess with the high side:

I dose 30-45ppm of NO3 and 15 ppm of PO4 as KNO3 and KH2PO4 weekly to this tank, see any evidence of BGA? Any algae for that matter?



Tank also is dosed 2 ppm of Fe as a proxy for traces......as CMS +B.

If what you stated is true, then how come I do not have algae or BGA?

If could be many many things(this we cannot ever be 100% certain).......but those 2(PO4 and NO3 being high) are not it(this we can be certain).

I think 15ppm and 30-45ppm a week of those would qualify for being on the "high" side.

Maybe I just got lucky this one time? I have about 50 tanks going back 20 years with similar results:
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