Green spotted puffer

Dichotomyctere nigroviridis

A bright brackish puffer of about 6.5 inches with a predator's temperament; it needs a roomy tank, salt and hard shelled food.

Key facts

Body length
6.7 in without fins
Minimum tank
34 gallons
Group
Alone is fine
Temperament
Aggressive
Care level
4 / 5
Lifespan
Not well documented
Diet
Snails, mussels, krill, frozen shrimp
Origin
Coasts and rivers of South and Southeast Asia
Among all species
  • Hardier than3%
  • Bigger than80%
  • Calmer than14%

Water: their range vs yours

Temperature75–82°F
pH7.5–8.5
General hardness10–20 dGH

Green spotted puffer tank mates

How we check

The numbers the tank model uses for green spotted puffers: water as ideal and tolerated ranges, bioload from adult mass, space, flow and how they act on other species.

Standard length
17 cm (SL)
Adult mass
171.96 g
Bioload at 25 °C
32.80 BU
Min. water
108 L net
Min. footprint
120 × 30 cm per specimen
Group
1+ (best 1)
Swims in
middle, bottom
Flow
moderate
Body / fins
round, normal fins
Diet type
carnivore
Fin nipper
notorious
Sensitive to
copper

Sources: Seriously Fish: Dichotomyctere nigroviridis

Care notes

Green spotted puffers live in coastal brackish waters and rivers from India to the Philippines. They are usually aggressive to their own kind and can become nasty with age.

Plan a 4-foot tank of 29 gallons or more per fish, with brackish water around 1.005 specific gravity or higher. Feed snails and shelled foods to keep the teeth worn, and avoid slow or long-finned fish.

Questions

What size tank does a green spotted puffer need?

At least 34 gallons (108 litres of water after decor). Adults reach about 6.7 inches without fins.

How many green spotted puffers should be kept together?

One is fine. They do not need company of their own kind.

What water do green spotted puffers need?

75–82 °F, pH 7.5–8.5 and 10–20 dGH. Green spotted puffers come from Coasts and rivers of South and Southeast Asia.

How long do green spotted puffers live?

Not well documented with good care.

What fish can live with green spotted puffers?

Good tank mates include Clown loach, Severum, Three spot gourami, Kissing gourami and Pictus catfish. Each is checked both ways for size, fin nipping, temperament, territory and shared water.