I think kalk has fallen out of favor because of the upkeep required to use it although it can be a great solution for a low to medium demand tank. Premixing the solution is tedious and messy plus the solution is highly caustic with a ph of 12-14. You really don't want that on your hands. Kalk mixing reactors can help but cost almost as much as a basic calcium reactor. There is also issue that since you typically replace you top up with kalk solution if the demand for calcium is too high you can't drip in enough top up to meet the demand.
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11-20-2012, 02:47 AM
Hybrid Mode
