Join Date: Oct 2006
Location: Ranchi, Jharkhand, India
Don't mix soil bio-chemistry with what happens in the fish tank. Soil fertiliser regimes are far more concentrated than in aquatic environments and the accumulation of the chloride ion due to long use of muriate of potash in crop fields is a problem for the farmer.
Chlorine accumulation does not take place in our tanks because of the routine of water changes that we follow - we only have to keep a watch that our supply water does not have unusual concentrations of chlorine.
The need for chlorine in our aqua-systems is at trace levels. So replacing muriate of potash with K2SO4 can be followed without any harm. Enough chlorine ions are available in our supply water for us to need an addition of more.
If you have a choice, you have a problem, till you elect your choice. No choice, no problem, only consequences, learn to live with them.