, and pH are always in-line and I use Oceanic (fresh mix or from tank).
My stepdad uses Oceanic, but he is having issues with pH. 7.8 consistently, whereas mine sits around 8.1-8.2. We have both have one kit, but he has a second to check with and I've used it on both tanks. Identical readings. I think his Alk
might be off tho... he was dosing buffers to raise the pH -- might've done more harm than good it seems.
What's also funny, is the previous "my salt is better" thread, was a bash on IO for having low calcium readings... and now it has almost excellent levels, and everything else balanced. Personally its just salt (with random additives), only reason I really use Oceanic is how easily it mixes - fine powder, not really for any other reason.