green spotted puffer
A small freshwater/brackish pufferfish, Tetraodon nigroviridis, often kept in aquariums.
The green spotted puffer is a small and cute ornamental fish.
Katakana spelling is standard for this fish name.
Kanji spelling is rare; the word is usually written in kana.
Compound of 緑 (midori, 'green') and 河豚 (fugu, 'pufferfish'). The exact derivation is uncertain, but the name refers to its greenish coloration.