My cat has his blenny. Its true love, I'm sure of it.
As for the laps and the maroon, do you have any way to check for stray voltage? A maroon doing laps, swimming into the current at or near the surface, even if eating, is still not a good sign at all. I'm betting for something wrong somewhere, either with the fish or in the water. There are some crazy fish, but, since this is a new purchase I'm thinking something is not ok with the fish. Wouldn't want something to happen to your other fish because of not being cautious. Maybe pm Richard and see what he thinks about this.