15 Pins 4y
Tera Mcmillian Perkins
Mini Ecosystem: I've always wanted to do this with a beta! fish gets its oxygen from the water and is able to survive in the water. Then the fish excretes some nutrients and minerals that the plant can use for its own growth and sustenance. The plant in turn takes up CO2 and converts it to oxygen, which enters the water and can be used by the fish, and also the some fungus grows on the plant’s roots, providing food for the fish.