Live Shrimp Eco-System with Opae Ula Shrimp - Self Sustaining Pets in Open Container! Perfect gift or desktop pet! These shrimp are very active and amusing to watch! Each ecosystem includes 3 Opae Ula Shrimp with everything you need to keep them alive for years! No water changes required and feeding is only necessary once a month(Food is included)! Each ecosystem comes ready to go and are shipped two-three day mail! We carefully pack our shrimp eco-systems so they arrive happy and healthy! These containers can be opened by simply removing a cap, this allows the shrimp to breathe so they can live their full life span, which is up to 25 years!