Nobody is stating true balling does not raise salinity of course it does, however it raises it no different to adding new "REEF" salt to your tank. where as 2 part raises it by only adding the sodium chloride to your system, or as stated above some unknown amount of missing or apparent elements.
Most 2 parts use bicarb and calcium from sources never designed to go near a fish tank, no way were these balanced with corals needs in mind.
Thats the difference.
2 and 3 part are not completely the wrong way to do it, thats not true, however they are just missing the final ingredient to do it in a way that stops any fall off in balanced trace elements.
Last edited by Aqua-Digital; 06-26-2014 at 09:41 PM.
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