Tetraodon mbu is a freshwater puffer and does not require the addition of salt to its tank. This is the king of puffers. They can reach 24 inches and they have great personalities. The color is magnificent also with a back yellow maze pattern. We suggest a sandy substrate, with smooth rocks and driftwood pieces for decoration. Leave plenty of open space for swimming. You can plant the aquarium if you wish but be prepared for bite marks to appear in the leaves if the puffer spots any morsels of food on them.A generally aggressive and intolerant species that really should be kept alone. Its beak-like mouth can easily bite chunks from other fish, or in extreme cases rip them to pieces. However, some specimens are less aggressive than others and it is down to the individual fish as to how it will react to tankmates. If you decide to take the risk, you will need a huge tank and tankmates that swim too quickly for the puffer to catch them easily. It is also very aggressive towards conspecifics and should never be kept in groups.