I bought a dog face puffer yesterday also bought 20 gallons of water right from the same tank hes been in at the store so I wouldn't have to take a chance messing up the water mixture. I put him in the new tank last night he was very active but this morning he's is just laying at the bottom of the tank with his tail curled up ... I put some krill in there he ate some of it and left the rest i tried to post a picture the website says the file is to big but does anyone know if this is normal could he just be getting used to the new tank ?