Congo Puffer - Tetraodon miurus - Small

2 Reviews
SKU: 208519
Manufacturer: That Fish Place
MPN: F90 0022 0446

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The Congo Puffer (Tetraodon miurus) is generally a mottled olive to brown fish. It is chameleon-like, however, and can adopt a wide range of colors and patterns including red hues and large spots and stripes. It changes colors to mimic rocks or the sandy bottom of the tank. They can be sensitive to cool temperatures, so maintain water temperature within an acceptable, consistent range. The Congo Puffer will bury itself completely, with only its eyes popping out of the sand. It then sits and waits for an unsuspecting morsel to pass by and ambushes it. Sand or smooth gravel will prevent injury when it does this.

Puffers are incredibly popular for aquariums. Many puffers are curious and outgoing and they may even seem to “know” when their keeper is near, swimming quickly to the aquarium glass or water's surface when someone approaches the tank. While endearing, puffers may not be the right choice for some aquariums.

Puffers are not too demanding in terms of care, but they need plenty of space and ample filtration to keep the water quality pristine. They're messy eaters, and the diet required for these fish can leave a lot of waste. Puffers have strong, ever-growing front teeth (beak) that they will need to wear down. They may chew on rockwork in the tank to aid in the process. Feeding hard-shelled items, such as whole clams or shellfish, can also help to keep the teeth worn. Their diet should consist of a variety of meaty items like crab, shrimp, scallops, squid, krill and similar items.

It is important to never provoke a puffer to see it inflate. Puffing is a stress or defense reaction, and it can cause health problems or even death for a puffer. The fish can swallow air or over-inflate with water, leading to even more stress as the fish attempted to recover and even death due to stress-related complications or internal injuries. If a puffer inflates, remove the source of the stress, lower the lighting on the tank and allow the fish to recover on its own. Avoid using a net or removing the puffer from the water and exposing it to air. Instead, transfer with rigid containers, which will minimize stress that can cause them to puff.

Some puffers are found in freshwater while others are from brackish environments and should not be kept in freshwater tanks. Brackish water is between freshwater and saltwater and has a Specific Gravity of around 1.005 to 1.015; most brackish water fish need increasing salinity as they grow and mature. They may live in brackish water as juveniles but need full saltwater as adult. Puffers are not community fish; they may prey on smaller fish or nip at the fins of passive fish their own size or larger. Even the tiny 1-inch-long Dwarf Puffers have been known to bully much larger tankmates!

Visit That Fish Blog for more information from our marine biologists on Pufferfish and other aquarium-related topics!


F90 0022 0446
That Fish Place
Common NameCongo Puffer - Small
Scientific NameTetraodon miurus
Max Size (in inches)6
Community SafeNo
pH Range6.5-7.8
Min Tank Size (in gallons)45
Temperature Range75-82
Internal Id

State Restrictions
Armed Forces Americas
Armed Forces Europe
Armed Forces Pacific
Puerto Rico


Ratings & Reviews

2 reviews

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Scary Fish!!


I used to work in an aquatic specialty store, and these things were creepier than any other fish we ever got in. They are ruthless, and they look scary. They will attach anything and everything with vigor. They are cool, but definitely not a community fish. Do your homework before housing one of these.

Great Fish!!


I went to the store today after waiting a long time for this fish. The people were extremely helpful in finding the fish in the store. This fish is great! I will definitely be back to this store. Very easy to house this fish!! Very cool to watch bury themselves in the sand. If you do purchase one of these fish make sure you have sand. You can also have gravel but make sure the sand has a deep layer on top of the gravel.