A free program for Android, by 3583 Bytes.

Aquarium Sim is a fun and educational app for kids and families to enjoy together. With its beautiful graphics, colorful fish, and cute interactions, this app is a must-have for anyone with a child. The best thing is that this is a completely free and interactive game that your kids can enjoy by tapping, dragging, and playing.

The main goal of this app is to design and build your own aquarium. You can choose from a variety of fish and environments to create your own personalized aquarium. This app is a great educational tool that can help your kids learn about fish and the oceans.