Aquahut, Suffolk Fish and Reef, and Country Critters are probably the closest. Aquahut has great prices on equipment, but I am not impressed with their livestock. Based on 5 or 6 visits over the last three months, I have regularly seen dead fish in their tanks, and their corals never look terribly healthy (sloughing tissue off, etc.). Suffolk Fish and Reef is certainly more expensive, and their livestock quality is variable. I have been in there when everything looks fantastic, and I have been in there when their fish have been having problems and significant algae outbreaks in the coral tanks. Country Critters has a great selection, but they are the most expensive of the three stores listed here. From a conscientious perspective, they do keep some fairly large livestock in very small tanks. I suppose they expect to sell some of these critters fairly quickly, but I think that probably isn't realistic given the animals involved.