Some of these animals are called snails or algae-eaters. Fish are not the only kinds of animals that can live in an aquarium. Sometimes frogs and even some bugs live in aquariums. Fish in an aquarium get their food from the humans who give it to them. They eat their food by going to the top of the tank and sucking it off the water where it is floating.
Fish can also eat other fish as food.
Aquariums are a fun and interesting way of watching fish and how they live. Each day the children will check the tadpole for any physical changes and note the changes on their calendars. When the process is finished, compare the calendars to see what differences there are among the calendars. Discuss reasons for the differences. Discuss the stages of a developing frog and help the children put the stages and labels in the correct order.