This is not a self-sustaining eco-system, it is a death trap.



In order to be a humane self-sustaining eco-system, it would requrie the following: The correct temperature for the species kept, ample oxygen supply for both animal life and bacteria, enough room for all animal and plant life to reach their natural adult size, enough surviving bacteria to handle the animal waste and keep the water clean, a suitable food supply and chemical pollutants in the water.



This 'system' fails on all counts and is nothing more than a death trap for these fish and snails.