Keeping Crabs In A Freshwater Tank

The idea of making the switch to a saltwater tank is appealing to a lot of freshwater aquarium owners because of the fact that a saltwater tank can provide the opportunity for not only fish that are more exotic, but for other additions to the tank that are more exotic (and more entertaining!) as well. But while a comparison between freshwater tanks and saltwater tanks certainly proves this to be the case, it does not necessarily mean that there are no "exotic, entertaining" additions

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