tap water to mix the salt?

Good info regarding the tests conducted on the various NO3 test kits ..

Now got to find some lab grade test kit...
IMO, I think Salifert still ok cos many experienced reefers use it.

can try Bio-Plast too...gives the same reading as Salifert

Originally Posted by cire

dun dare to mix salt wif tap water now so
hav to buy sea water from LFS....
at least the NO2 is around 0.1-0.2

If u buy sea water from them, there is certain risk that the water might be polluted or not safe afterall. Anyway salt mixes still the best option IMO!