Any thoughts on switching? The IO has worked fine for me and isn't nearly as expensive. However; I've read the Mag, CA, and Alk levels are better in Seachem than IO...and then I've read the opposite
I've been mixing some io with seachem for a couple years, I find it boosts the ca to a good level, io is tto low by itself and seachem is too high by itself
I ask myself the same question each bucket. I like the way IO tastes I guess is the only thing I can say
Seriously though, I enjoy supplementing. Actually I just add Ca and Mg to the mix tank same as Gresham.
I just keep two measuring cups (super small cough syrup ones) with the correct dose marked on them for my standard WC volume. Super easy and cheap since it's all bulk 2 part components