Feed your finned friend with the Zoo Med Pleco Banquet Block Fish Food. This time-release food block contains algae and wood fiber for long-term health in suckermouth-type catfish. It provides a supplemental food source for difficult feeders and gives an opportunity for bottom feeders to wear mouth parts naturally. Perfect as a vacation feeder as well， Zoo Med Pleco Banquet Block Fish Food can be used for fresh or saltwater fish.