Figure 8 Puffer (Tetraodon biocellatus)
The Figure 8 puffer originates in brackish (partial salinity) streams and estuaries of Southeast Asia, including Borneo, the Malaysian peninsula, Sumatra, and Thailand.
Reaching an adult size of fewer than three inches, Figure 8 puffers are small for pufferfish. They are not well suited to community tanks due to their aggressive nature. Ideal tank setups include keeping them alone or in a large aquarium with only a few compatible species that thrive in partial-salinity environments. Suitable companions include bumblebee gobies, knight gobies, and mollies.
| Species | Habitat | Adult Size |
|---|---|---|
| Tetraodon biocellatus | Brackish water (partial salinity) | Less than 3 inches |
FAQ
What kind of water conditions does the Figure 8 puffer require?
The Figure 8 puffer requires brackish water with partial salinity. It thrives in environments that mimic its natural habitat in Southeast Asian estuaries and streams.
Can Figure 8 puffers be kept with other fish?
They are not well suited for community tanks due to their aggression. Only keep them with compatible species such as bumblebee gobies, knight gobies, or mollies that also tolerate brackish conditions.
What is the typical adult size of a Figure 8 puffer?
The adult size of a Figure 8 puffer is fewer than three inches.
Tracey Skinner –
I kept a Figure 8 puffer in a 20-gallon brackish tank with a knight goby. It’s active and colorful, though it does need space and a stable salinity level. The goby gets along well with it, and the fish doesn’t seem to stress the others.
Justin Johnston –
The puffer is small but very interesting. I had to adjust the salinity carefully, and it’s important to keep it alone or with very compatible species. It’s not aggressive with the right tank mates.
Faith Duncan –
I tried adding it to a mixed community tank, but it quickly became aggressive. I removed it and now keep it alone. It’s a good species for experienced brackish water keepers.