Injured baby guppy - back :(

[Killerokapi]

Hi there,I was trying to catch a guppy fry in my main tank to move him to a small tank with other babies I had found. He moved fast and got caught between the net and the tank. I think it injured his back! He’s bent now and while he can swim it’s his front finds, he doesn’t seem to be moving his tail. He’s swimming near the top of the little tank and only moving a lot if I open it. Could his back be broken? Is there anything I can do? I feel awful - I was trying to get him so the big fish wouldn't eat him