Starve him out! He'll eat, A healthy fish will never starve itself to death in the presents of food. It's a battle of wills and you have the upper hand.
Use NLS Thera +A. A night crawler once in a while is fine but it can't be it's main source of nutriton. If you are really worried about the long term health of your fish a little tough love will go a long way.
Use NLS Thera +A. A night crawler once in a while is fine but it can't be it's main source of nutriton. If you are really worried about the long term health of your fish a little tough love will go a long way.