I have 10 gallon tank (not like it will matter in this question) and i just bought small snow flake stickers for reasons and i have some left over. Is it okay to decorate the out side of the tank with them or will it stress the fish out? I love decorating for Christmas and i was wondering if i could include my fish in it. Oh i also have a really small tank for a betta fish i keep. Can i decorate it too?