I have mostly used IO or TM and never had a problem with either. I'm currently using IO because it's the most readily available locally.
Once, a few years ago, I ran out of IO and decided to try Crystal Sea Bioassay mix.
Bad move - I wiped out all of my SPS corals...
Once, a few years ago, I ran out of IO and decided to try Crystal Sea Bioassay mix.
Bad move - I wiped out all of my SPS corals...



