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Re: BG algae and trace elements

> From: Olga Betts

> I have a continuting nightmare with BG algae. No matter what I do  it
> returns and covers everything with thick slime. I dug out the test
> kits and tested and low and behold - even though I have been adding 2
> cc of PMDD daily the Nitrate and Iron readings are *none*! Is there a
> shelf life to potassium nitrate and trace element mix? (The test kits
> are okay - not old).
> I have done another <sigh> water change, removed as much slime as
> possible, added Maracyn and this time I'm putting 6 cc of PMDD into
> the water daily. Tomorrow I will do some more tests. But meanwhile if
> someone can tell me if PMDD ingredients go bad, I'd appreciate it.

See my post this month at
where I have concluded that the PMDD dosing regimen may be too little, at
least for potassium. I am dry dosing the PMDD components now and the tank is
doing well. I have another tank where I lived previously that is not getting
regular dosing yet, and it has a bad BG outbreak now. I am sure it is out of
every nutrient, especially N, K and trace elements.