On Fri, 21 Jun 1996 15:39:02 -0400, John Lobingier <jlob at wpa_net> wrote: > What aquarium brand fertilizer can I use to supply more potassium? I use NO-SALT, KCl, in the supermarket for cheap. It is a salt substitute. Dave Dave Gomberg, Experimenta San Francisco CA USA gomberg at wcf_com