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Salt · 07-27-2006, 01:41 PM

Your phosphate levels are probably adequate as well; they usually are in a goldfish tank.

You could add additional potassium with potassium sulfate - K2SO4.

In my goldfish tank, I use RO water. When I reconstitute the alkalinity, I use potassium bicarbonate instead of sodium bicarbonate, so that's where most of my K comes from. But that's just me and my unconventional ways.

07-27-2006, 01:41 PM	#2 (permalink)
Salt Senior Member Join Date: Apr 2005 Posts: 678 iTrader Ratings: 0 Plant Points: 17715	Your phosphate levels are probably adequate as well; they usually are in a goldfish tank. You could add additional potassium with potassium sulfate - K2SO4. In my goldfish tank, I use RO water. When I reconstitute the alkalinity, I use potassium bicarbonate instead of sodium bicarbonate, so that's where most of my K comes from. But that's just me and my unconventional ways.