[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Surface scum
> From: George Booth <booth at hpmtlgb1_lvld.hp.com>
> Subject: Re: surface scum
>
> So can folks corrrelate surface scum with iron additions; perhaps even with
> specific brands of fertilizer? Do tanks using PMDD get it?
I have never used "PMDD" as the mixture, but do use the method,
and have seen surface scum, of a bright green variety. I have never
managed to correlate it with anything in particular. I don't have
any at the moment.
--
Paul Sears Ottawa, Canada