My fish called Fudgy lives with guppies, plata and albinos. The poor little guy hides all day long in this little hole thing or hides in the plant. He is always last to get to food and swims slowly. However when I introduced him to his new home he got stuck in the bag with no water for a few seconds. We managed to get him out but he did show signs of stress that day. That was 2 months ago yet he is so shy... how can I help him? What should I do?