Quote:
Originally Posted by fishyfishster
Yeah can't beat the price
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Actually you can. If you buy IO and add your own calcium chloride it will cost less than IORC and it will be closer to NSW levels.
The idea of supplementing calcium, alk, magnesium etc. through water changes only works if there is a demand/depletion and if the water changes are large and frequent. A reef tank that is 30 gallons or smaller would benefit from such a salt if weekly water changes of 10% or greater were made. A large tank with infrequent water changes would not benefit from supplementation through water changes. If you are dosing chemicals or using a Ca reactor, there is no need for a salt with level elevated beyond NSW.
H2Ocean and Tropic Marin are both closer to NSW levels than either IO product. Tropic Marin is supposed to be homogeneous, so it is better suited for people who want to use an open bucket over time without compromising quality.