Ergo Outdoor Pet/Pond Feeder Used to feed dry solid food for animals in zoos and parks Used for adding chemical pellets in swimming pools. Used for adding a broad spectrum bioactive cultures that have the ability to digest and liquefy organic wastes in septic tanks, pools etc. Used for providing treats to pets as a reward to reinforce pets behavior. Used to feed birds with any kind of bird seed. Used to feed dry solid food for animals in zoos and parks Used for adding a broad spectrum bioactive cultures that have the ability to digest and liquefy organic wastes in septic tanks, pools etc. Used for providing treats to pets as a reward to reinforce pets behavior. Used to feed birds with any kind of bird seed.