Thank you all so much! I really like this site.
I thought he might have swim bladder disease so I attempted feeding him peas. He didn't get them and seeing as they're frowned upon, I'm glad.
He won't really eat and hasn't relieved himself.. lol, I guess it is stress and getting used to it.
He does seem to be getting better as the days go by. More swimming around. He loves this one shell ornament that he hides in. Its like a ceramic dish(never used previously and washed) that's shaped like a shell. I originally had it in to not make the gravel disperse as I poured in water. But ended up keeping it in.
The plastic plant is curved and light, so I don't think its a danger to him. I'll definitely look for real plants, caves, and/or driftwood that I'll prepare properly.
And friends will be for the future. Once he's set and happy in there.
Owning an aquarium is exciting.