How do volvox get rid of waste/water?

Volvox doesn’t get rid of water nor waste it is rather the Euglena. These organisms are the ones responsible for the disappearance of waste by using their contractile vacuole. Volvox instead move and transport itself from its two flagella that thrusts through water. Volvox eats organisms that are found in water mainly algae and etc. These latent microorganisms eat also other plants. They also can process photosynthesis.