Give them a day without feeding and let them see your other fish go nuts for the food.
As I was writing the above statement, I thought of a possibility: make sure your other fish aren't letting the food get to the GBRs. Just a theory but may mean that they need to learn to go "up" for their food. OR, purposely get food that you can sink quickly while the others eat in the surface.
Sent from my iPhone using Aquarium Advice
__________________
- Regards, chykityta
|