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Dosing potassium with banana?
It's wild-hair night tonight at Howell Park, and I'm considering
introducing potassium into the tank by feeding banana pieces to
the bottom-dwellers (or trying to...). Suggestions of feeding
peeled peas or blanched zucchini to the bottom-dwellers and algae-
eaters, along with claims by the USDA that bananas are a good
source of potassium, have inspired this thought. Before I go and
do anything rash, though, I thought I might inquire if wiser heads
knew of any reason that this might poison the tank (as long as any
uneaten banana were removed before it decays).
In a related question, where does all the potassium that plants use
in the wild come from? Certainly, it's "naturally occurring", but
what's the source? (I suppose I should go find a freshwater ecology
book, huh? :)