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Green Spotted Puffer

Green spotted Puffer Green spotted Puffer
Juvenile Green Spotted Puffers, Dichotomyctere (Tetraodon) nigroviridis.
Photos © Sean Evans

Common name:Green Spotted Puffer, Spotted puffer / pufferfish
Scientific name:Dichotomyctere nigroviridis
Synonyms:Tetraodon nigroviridis
Size:6" (15cm), often smaller in aquaria.
Origin:Asia: India, Indonesia, Sri Lanka, Thailand.
Tank setup:A brackish tank, with rocks, bogwood or robust/plastic plants for cover.
Compatibility:Not overly aggressive, but may still show some aggression towards their own kind, other puffers, or other fish - especially as they approach adult size. Keep in a species tank or with larger brackish fish, such as monos and archerfish.
Temperature:24-28oC (75-82oF)
Water chemistry:Brackish, hard and alkaline. Brackish conditions for adults should be from around 1.010 sg up to full marine conditions.
Feeding:Carnivorous: live and frozen foods including snails, mussel, cockle and shrimp/prawn, earthworms, bloodworm for juveniles.
Sexing:No obvious differences.
Breeding:Spawning occurs in brackish water. The eggs are laid on the substrate, and guarded by the male.
Comments: One of the more commonly encountered brackish puffers, it is often confused with D. fluviatilis (Green puffer) - or even with with Tetraodon schoutedeni (Leopard/Spotted Congo puffer) - a freshwater species. This species is often sold in freshwater when young, and can be maintained successfully in this way for a short time in hard alkaline water, but should be adapted to brackish water as it grows, for its long term health.

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