ok i have a fiddler crab in a brackish water aquarium. shes a cool addition to the tank but i have a question. apparently they need air and need to break the surface. i dont want to do a traditional fiddler setup as the water level drop would be too much for my green spotted puffer, who requires a spacey tank. the guy at the pet store said my issue could be solved by adding this giant fake plant thing, as the fiddler will climb it to breathe at the surface. i was wondering if this is a good idea? or if anyone else has any other suggestions i would like to know. thanks for your help.