I have been gazing over the forum for the past week for ideas on a new smaller tank 20 gallons for my office. I was getting excited to try a shell dweller tank. It seems to make the most sense. However since I live in Bozeman MT the closest local fish store is about 3 hours away- besides the Petsmart. I just learned this disturbing fact since I have not been in MT long. Anyway my only Cichlid choices are not the best for a small tank. I was wondering where you would recommend a location to order shell dwellers from. I trust your opinion and as someone who worked in a aquatic toxicology lab for five years I am pleased to see some intelligent speak on the web. Any advice is appreciated.