Yeah, that sounds fine. You may have a little too much salt in there, as it is usually 1 tbsp/5 gal, but i'm guessing at most you have 4 gal in the bucket. Make sure you try to cover the tank so he can't jump out.
Also, if you are lucky enough to have a whisper filter, take out the carbon, empty the pouch, and put the air stone in the bag. This will get some beneficial bacteria in the tank which will keep ammonia and ntirite from building up.