This feeder is designed specifically with butterfly fish in mind. It's design takes into account their longer mouths and only they are able to reach the food inside.
It's an excellent product to use if you find that your other fish are outcompeteing your butterfly for food.
Now with a flexible TPU lid to stop the fish from harming itself.
Secured with N52 magnets, suitable up to 19mm glass (as shown on our RSR 750XXL)