Well guess what! They did have it at the Petco on Hwy 6. I went in to look one more time, and if not found, buy Oceanic.
Or course it wasn't with any of the other bottled waters, nor was it even with the saltwater products. It was on the floor (2 boxes) by itself over near the food freezer.
After loading them into my basket, I went over to the reptile/saltwater fellow and told him that they do in fact have the Catalina water.
Rather than say, "Oh..that's what you were talking about," or "I didn't even know we had that," he says that they just got it in about two weeks ago.
I reminded him that I was in just last week when he told me they didn't carry it and that other people told me that they did. He said they used to and then stopped and must have just gotten it back in - yeah right!
Anyway, apparently they do stock it, but not in very large quantities. I took the only two boxes they had. That will fill my tank and leave me with enough for a months worth of water changes though.
While I've got your attention, how much of a water change do you do after the cycle on a nano? I'm learning not to make too many assumptions about similarities between larger tanks and nanos - the usefullness of a DSB being one.
I just went with about a 1" sand bed - large grain.
Thanks for the help.