Family: Tetraodontidae
Arrowhead Puffer — a Tetraodontidae from Mekong basin, SE Asia, curious, bold and not to be trusted with tankmates' fins. Reaches 8.6–12.7 cm; singly, with room to patrol. 24–28 °C.
Pao suvattii is a Tetraodontidae from Mekong basin, SE Asia. In the wild it prefers estuaries and brackish shallows; in the aquarium it stays curious, bold and not to be trusted with tankmates' fins. Plan on 8.6–12.7 cm of adult fish at 24–28 °C. In a community tank it pairs well with Fast robust fish too large to harass.
A moderate-level species: curious, bold and not to be trusted with tankmates' fins; stable water matters more than fancy equipment.
Set the heater to 24–28 °C and avoid swings. pH 7.5–8.5, GH 9–19 dGH suit it.
Expect 8.6–12.7 cm as an adult, living bottom-dwelling. A 194 L tank or larger gives it room.
Needs crunchy prey: snails and shellfish trim the ever-growing teeth. It forages naturally over fine sand, so let some food reach the bottom.
Curious, bold and not to be trusted with tankmates' fins; singly, with room to patrol. Good company: Fast robust fish too large to harass — Only in the largest setups. Keep away from Invertebrates — Eaten like the snails they are.
Its home waters are Mekong basin, SE Asia — estuaries and brackish shallows, with still to gentle.
In the aquarium: spawning reported rarely; courtship on the substrate. Unclear.