New Clown Loach

I added a clown loach to my tank this evening. I'm curious as to
whether it's acting normally or not. It seems to do a lot of laying
on its side in some corner or another. It is alive because I see it
moving every once in a while but I'm not used to fish just laying on
the bottom.

When I first put him in a few hours ago he laid under a decoration and
shook every once in a while. It kinda looked like he was having a
siezure. Is this normal for clown loaches?

The tank is cycled and well airated with only 1 platy and 2 larger
sixed fry.