Tetraodontidaefreshwater fishintermediate

Milk-spotted Puffer

Chelonodon patoca

Also known as: Milk-spotted Puffer, Milkspotted Puffer

Origin: Indo-Pacific (mangroves and estuaries)

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Water Parameters

Temperature2428 °C
15 °C35 °C
pH7.58.5
49
GH (Hardness)1225 °dGH
0 °dGH30 °dGH
KH (Alkalinity)615 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
30 cm
Min Tank
300 L
Lifespan
5-10
Swimming Level
middle
Schooling
No
Diet
carnivore
Temperament
Aggressive; brackish to marine species-only housing required

About

Chelonodon patoca is one of the most broadly distributed Tetraodontidae, occurring throughout the Indo-Pacific from the Red Sea and East Africa to Hawaii and the Pacific Islands. It inhabits mangrove channels, tidal creeks, and shallow coastal reefs. Growing to 30 cm, it requires large aquaria with brackish to marine conditions and a robust shellfish-based diet.

Care Guide

Water: 24–28°C, pH 7.5–8.5, SG 1.010–1.025; full brackish to marine preferred for adults. Tank: Minimum 300 L; open substrate, coral sand, and mangrove roots or robust marine decor. Feeding: Clams, mussels, cockles, crabs, and frozen shellfish; heavy feeders requiring frequent large meals. Behaviour: Aggressive and territorial; will attack other species relentlessly. Compatibility: Species-only; solo housing in dedicated brackish or marine aquarium.

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