Originally Posted by Optix
AIR is cheaper
my fish were fine, my plants were fine and my tank/filter was healthy
...so what are we even discussing here? obviously, there are many different ways to approach a tank and be successful
is KCl or K2SO4 a "better" method to introduce potassium into a tank? Even though one has more K (per weight) than the other, if I had a jug full of K2SO4, I wouldnt run out and buy KCl just because...
both methods work!