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Re: HCl vs. HNO3 ...

Paul Krombholz

> One possible problem is that HNO3 is a fairly strong oxidizer, and the
> chelating agent for your iron may be susceptible.  I am not enough of a
> chemist to know for sure.  It might be safer to add the nitrate to your
> tank separately.

I don't want to use HNO3 as the main source of nitrate, I want to use it
to keep my PMDD from spoiling instead of using  HCl (small amount).  My
guess it lowers Ph in the solution low enough to where bacteria aren't

Bjorn Straube
straube at digital_net