Dwarf Puffer
Colomesus tocantinensis
A tiny puffer from Brazilian waters, surprisingly manageable for newer keepers.
About
Discovered in the river systems of Brazil, Colomesus tocantinensis is a dwarf puffer that sits at the smaller end of the size spectrum even for its already-compact genus. Adults top out somewhere between under an inch and just over an inch, making this one of the more petite puffer species you are likely to encounter. Like other members of Colomesus, it almost certainly carries that classic puffer personality. Curious, interactive, and prone to investigating anything new in its environment. Puffers as a group are well known for their beak-like fused teeth, which grow continuously and need hard foods to keep trimmed down, so offering snails, shellfish, or similar crunchy fare is something any keeper should plan for. Despite the general reputation puffers have for being tricky, this species is listed as a beginner-friendly option, which is a pleasant surprise in a group that includes some genuinely demanding fish. Source data on this particular species is still fairly limited compared to more established puffer species in the hobby, so keepers should watch for updated information as it filters in from both scientific work and hobbyist experience in the field.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Dwarf Puffer
Frequently asked questions
- How big does the Dwarf Puffer get?
- The Dwarf Puffer reaches about 1–1.5" as an adult.
- Is the Dwarf Puffer aggressive?
- The Dwarf Puffer is semi-aggressive. It can work in a community with careful tankmate choices and enough space.
- What does the Dwarf Puffer eat?
- The Dwarf Puffer is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- Is the Dwarf Puffer reef safe?
- The Dwarf Puffer is not considered reliably reef safe and may harm corals or invertebrates.