PMDD / Tropica Mastergrow
Paul Sears wrote:
> I would not suggest using both at the same time. The method
>Kevin and I developed was not (as Karen Randall suggested) based on
>Tropica Mastergrow; we used logic and experiment. The plants _need_
>K, N, P and a well-known list of trace elements. They must be provided
>somehow, but there is no point in duplicating sources, and I infer
>from what Karen said that Tropica Mastergrow is a trace element mix.
Sorry, Paul, when the term "PMDD's" was first being thrown around, I
thought I remembered that someone was using the percentages in Mastergrow
as the model for PMDD. I know that your addition of N was an added step to
reduce P in nitrogen limited tanks. Sorry if I mislead people.
In any case, whether PMDD's were originally based on Mastergrow or not,
Mastergrow contains all trace elements, and relatively larger amounts of K
and Mg. One of the nicest things about it from my perspective is that the
label states the exact percentages of each element in the formula.
Aquatic Gardeners Association