Did IO change the amount of trace elements?

[smcnally]

I mixed up 15 gallons of Instant Ocean this morning. It has been circulating and heating all day. It is at 79 degrees and salinity is at 1.026. I measured Ca and Mg and was shocked at the results. I've always been told it normally tested low. The Ca tested at 420 and the Mg at 1410. What are you guys getting from your batches? Oh yeah, Alk at 8 dKh.

 

[~Flighty~]

That sounds like what I got with IO when I did my 400g container. Be carefull, a big change in formulation might stress the corals.

 

[smcnally]

Nah, I always do a 15 gal change. My tank is at around 410 for Ca and 1350 for Mg anyways.