I use Oceanic and have been happy for the most part. I wonder if some of the hair algae is from the salt or maybe my bulbs are farther along than anticipated.
The last study I saw by Borneman had Red Sea as the winner but IO will always be the mainstream salt. I started with IO and never had any issues except when I use tap water. I went to Oceanic for the higher Ca
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,