An Ecosphere is a sealed unit containing animal and plant life. Energy is supplied in the form of light, which causes the plant (algae) to grow, providing food for the shrimp, which in turn produces waste products which are supposed to nourish the plant. As can be imagined, this is a delicate balancing act, requiring just the right ratio of plant/animal life in order to succeed. It's highly unlikely for it to work if there is any surplus of dead/decaying organic matter present.
What you have is not an Ecosphere, but rather a pickle jar full of muddy water.
What you have is not an Ecosphere, but rather a pickle jar full of muddy water.