I will probably begin some water changes shortly to prevent the latter occurance, and stabilize it. Right now, I am waiting to assure that phosphates are down, and waiting on additional test supplies to verify it. Currently, performance is indicating a reduction. There is little if any visible phosphate restriction on growth. I just need to see the numbers.
The actual discharge of phosphates from aquaculture (and agriculture as you noted) is one the enviro-freak concerns. I actually don't think it is a big deal if it is properly dispersed. I might be wrong.
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