Valentini Puffer
Canthigaster valentini
Also known as Saddle Toby, Blacksaddle Toby, Valentin's Sharpnose Puffer
Care at a glance
- Temperature
- 75–81°F (24–27°C)
- pH
- 8.1–8.4
- Adult size
- 4.3 in (11 cm)
- Minimum tank
- 30 gal (114 L)
- Temperament
- Mostly peaceful
- Social behavior
- Solitary
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Common
- Reef safe
- Reef safe with caution
- Origin
- Indo-Pacific reefs, from the Red Sea and East Africa to the Tuamotu Islands, north to southern Japan
- Family
- Tetraodontidae
Overview
Mostly peaceful and one of the more outgoing small fish in a FOWLR tank, though it can nip at the fins of slow tankmates and spar with other tobies. It's reef safe only with caution: it generally leaves stony coral alone but will pick at ornamental shrimp, snails, clams, and crabs, so treat any invertebrate in the tank as a potential meal. Offer a varied diet of mysis plus chopped shrimp and clam, with the shell left on when possible, to keep its beak in check. Handle it gently and avoid a net when you can, since like all puffers it can swallow air if stressed out of the water.
In the wild
Native to Indo-Pacific reefs from the Red Sea and East Africa to the Tuamotu Islands and north to southern Japan, usually darting among coral heads and rubble on lagoon and seaward reefs down to about 55 m. It is a small, busy fish that spends the day picking around rockwork for food, so it does well in a tank of at least 114 litres (30 US gal) with plenty of live rock offering both foraging surface and places to retreat.
Good to know
Carries the same fused, four-plate beak as its larger puffer relatives, scaled down to a body barely 11 cm long, and needs the same wear from hard foods to keep it from overgrowing. Its skin and ovaries concentrate tetrodotoxin along with smaller amounts of saxitoxin, both potent nerve toxins that make the fish unpalatable to most predators. The dark brown saddle markings across its back and sides give the species its common name and are usually enough to identify it on sight.
Did you know
It has a body double on the reef: the unrelated mimic filefish copies its saddle pattern so closely that the two are often mistaken for each other, even though the filefish carries no toxin at all and is simply borrowing the toby's fearsome reputation to stay off the menu.
Where to buy
Some links may not be the exact species or variety.
- LiveAquaria Freshwater and saltwater fish, inverts and corals
- Saltwaterfish.com Marine fish, corals and inverts shipped overnight
…or ask your local fish store.
Appears in
Keeping Valentini Puffer?
Track water tests, reminders and stocking fit.
Related species

Blue-Spotted Toby
Canthigaster solandri4.7 in (12 cm)50 gal (189 L)75–81°F (24–27°C)
Green spotted puffer
Dichotomyctere nigroviridis5.9 in (15 cm)32 gal (120 L)75–82°F (24–28°C)
Dogface Puffer
Arothron nigropunctatus13 in (33 cm)151 gal (570 L)75–81°F (24–27°C)
Guineafowl puffer
Arothron meleagris19.7 in (50 cm)180 gal (680 L)75–81°F (24–27°C)Map puffer
Arothron mappa23.6 in (60 cm)238 gal (900 L)75–81°F (24–27°C)
Stars-and-Stripes Puffer
Arothron hispidus19.7 in (50 cm)180 gal (680 L)75–81°F (24–27°C)
