The development of in-vitro formicariums for the fire ant Solenopsis invicta and carpenter ant Camponotus compressus was done using methods suggested by Janet (Janet. 1893). Different approaches are required for the two formicaria. For a fire ant formicarium, Solenopsis invicta, four different layers are necessary: a drainage layer to prevent a wet condition, a barrier or compartment layer made of coconut husk or shade cloth to stop soil from entering the drainage layer, a layer of charcoal to clean the air or stop microbial or fungal activity and finally a layer of soil. The formicarium of Carpenter ants, Camponotus compressus, on the other hand, require a drainage layer made of tiny rocks or clay balls as well as the sole soil layer that causes the carpenter ants to build their colonies deeper. Both formicaria have demonstrated 100% success in raising their offspring.