Philippe Lemaire (remove oldies) wrote:

Is there a way ?

Philippe

The only other compound that is a likely candidate would be sodium
nitrate. The others are poisonous, expensive, or unavailable.

If this is for a planted tank, what's wrong with readily available
potassium nitrate ? Usually a planted tank needs more potassium than
nitrate, so you use KNO3 to supply as much nitrate as needed and add
more KCl to get the K up to target.

--

George