Green Spotted Puffer

Green Spotted Puffer key facts

Care level

Intermediate

Lifespan

5-8 years

Size

Up to 17cm TL

Temperature

24〜28℃

Diet

Snails, crustaceans and other shelled invertebrates, plus frozen foods

Tank

Seriously Fish suggests a 120 x 30cm base of about 108 litres. Arrange roots and branches over sand for cover but leave open water, since it is active, and diffuse the light with floating plants.

Water Temperature & Quality

Seriously Fish gives 24-28C, pH 7.5-8.5 and 10-20 dGH; FishBase records pH 8.0 and 9-19 dH in the wild. It is a brackish-water fish and very sensitive to declining conditions, so partial water changes must be routine.

Tank Mates

It nips slow-moving or long-finned fish, so choose companions carefully; robust, active species such as scats and archerfish work best. It fights its own kind, so keep at least four in a spacious tank if keeping more than one.

Diet & Feeding

Feed snails and unshelled shellfish such as crab legs and cockles regularly to keep the continuously growing teeth worn down, alongside live and frozen foods. Overgrown teeth eventually stop the fish feeding.

Breeding & Spawning

Not easy, but it has spawned in aquaria. Spawning takes place only in brackish water, the eggs being laid on flat rock and guarded by the male. They hatch in about seven days and the fry are difficult to raise.

Health & Notes

Its body carries tetrodotoxin, so a dead fish must never be fed to other animals. It inflates when alarmed; never lift it into the air, where it can take in gas. The IUCN rates it Least Concern and it is not listed by CITES.

About Green Spotted Puffer

A guide to the Green Spotted Puffer, a small brackish-water fish from South and Southeast Asia — coloring, ever-growing teeth, and territorial nature explained for prospective keepers.

7 things to know before welcoming a Green Spotted Puffer

1. 1Best Kept Alone

   Green Spotted Puffers are territorial and prone to nipping the fins of tankmates, so solo keeping is generally recommended. If you do try community tanks, you'll need a spacious setup and close observation.

2. 2Teeth That Never Stop Growing

   Their teeth grow continuously to keep pace with crushing shellfish. Offering hard-shelled foods like snails or shrimp regularly helps keep their teeth worn down to a manageable length.

3. 3Native to Brackish Water

   This species comes from the brackish and freshwater regions of South and Southeast Asia. Managing water quality and salinity is a key part of their care, so it's worth researching setup requirements beforehand.

4. 4Grows Up to 17 cm

   Adults can reach up to 17 cm in length. Plan for a tank size that accommodates their full adult size from the start.

5. 5Smart and Recognizes Its Keeper

   Green Spotted Puffers are known to recognize their owner's face and movements, often swimming over at feeding time. At the same time, they can be strong-willed and sensitive to changes in their environment.

6. 6Water Quality Needs Attention

   These fish are sensitive to changes in water quality, so regular water changes and reliable filtration are essential. This ongoing maintenance is part of why they're considered a fish for more experienced keepers.

7. 7Prepare Your Setup Before Bringing One Home

   Given their territorial nature and ever-growing teeth, set up a tank suited to solo keeping and have hard-shelled foods on hand before your puffer arrives. Doing your research in advance makes for a smoother start.

Frequently asked questions about Green Spotted Puffer

Q.Can Green Spotted Puffers live with other fish?

A.They're territorial and tend to nip at the fins of tankmates, so solo keeping is generally the safer choice. If you want to try a community tank, use a spacious setup and monitor behavior closely.

Q.What should I feed a Green Spotted Puffer?

A.Because their teeth keep growing, it's important to regularly offer hard-shelled foods like snails or shrimp. Without enough hard food to gnaw on, their teeth can overgrow and make it difficult for them to close their mouth.

Q.Should I keep it in freshwater or brackish water?

A.In the wild, Green Spotted Puffers live in brackish and freshwater habitats, so water quality management that reflects this is important. Rather than assuming one setup will work, it's best to research their care requirements thoroughly before bringing one home.

Q.How long do Green Spotted Puffers live?

A.Lifespan varies depending on the individual and how it's kept, so we can't state a specific figure here. Consistent water quality management and proper feeding are key to keeping one healthy over the long term.

Q.Is the Green Spotted Puffer subject to CITES?

A.No, the Green Spotted Puffer is not subject to CITES. When getting started, focus on setting up a suitable tank and having the right food on hand.

Useful tools for Green Spotted Puffer care

Learn more about Green Spotted Puffer in the encyclopedia

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