{"type"=>"root", "children"=>[{"type"=>"paragraph", "children"=>[{"type"=>"text", "value"=>""}]}, {"type"=>"paragraph", "children"=>[{"type"=>"text", "value"=>"Aquarium design should be bottom-oriented and built around burrow construction. A mixed bed of sand and rubble that mirrors the natural substrate gives this fish the coarse material it uses to line and shore up a tunnel, and access to that digging medium is the single most important requirement in the display. A 50-gallon aquarium is the practical adult minimum, with a broad, open footprint being far more valuable than height. Rockwork should be seated firmly on the bottom glass rather than on the sand, since excavation beneath unstable structures can bring stone down on the fish. Care level is moderate, largely because the setup must be tailored to burrowing rather than treated as an afterthought."}]}]}