We have had a predator tank set up for about a month and slowly prepping for a shark, we finally got a medium sized coral cat yesterday and want to be sure we are doing everything right. He is in 180 gallons (know this is small but it's for right now) about a 2" bed of love sand and a pile of live rock in each corner and in middle, he probably has 75% of the floor space clear. We did a slow drip acclimation and then put him in. He swam back and forth for about an hour then calmed down, we got him to eat a chunk of silver side. We're just worried because he really doesn't move, will even let us pick him up and he doesn't do much. Any thoughts?