Oceanic.
BTW: You should really switch salts SLOWLY. It can really mess up a tank by just changing a brand.
I switched from IO to OC by adding 25% OC to 75% IO. The next WC was about 50/50. Then I did a 25% IO-75% OC. See what I mean?
I have heard some corals having a melt down just from switching salt too fast.
HTH