It may eventually affect the alk
levels if you do not keep up with water changes and could affect the health of snails and/or crustaceans. 360 ppm Ca
is below NSW
levels which are 380-420 ppm
. If you keep up with the weekly water changes you might be okay but be sure it goes no lower. One of the reasons I dislike IO salts.
Will I have to add Ca every day? Or just perhaps after each waterchange every 2 weeks?
It would be safer to boost the Ca
in smaller amounts daily rather than one large dose. Twice monthly water changes won't amount to much when your needing to correct a chem problem. You also need to consider the chem of newly prepared SW
. If that's not balanced, the water chnages will not affect anything but the DOC
/trace element levels. Major chem proponenst will remain unaffected.