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People use it as fertilizer, it's been used in planted tanks, and it should be safe for fish. You'll want to adjust your numbers accordingly for the extra K+ if you're trying to hit specific numbers.
K2PO4 isn't a valid compund,
K2 has a charge of 2+
PO4 has a charge of 3-
therefore the overall charge is -1 (it has to equal 0)
when there are 'gaps' like this you can usually assume an Hydrogen can take that place, so in fact they are both the same thing.
Thanks, Aaron
K2 has a charge of 2+
PO4 has a charge of 3-
therefore the overall charge is -1 (it has to equal 0)
when there are 'gaps' like this you can usually assume an Hydrogen can take that place, so in fact they are both the same thing.
Thanks, Aaron
Ya, it's actually K2HPO4. For some reason it gets labled K2PO4 in the hobby, just like people glazing over the H2O in most CaCl2 or MgSO4 related compounds.