Species Profile
Violet Goby
Gobioides broussonnetii
Also known as: Dragon Goby, Dragon Fish, Peruvian Eel
Gobiespeaceful
Adult size
22″
Minimum tank
75 gal
Temperature
72–79°F
pH
7.5–8.5
Schooling
Solitary OK
Water level
bottom
Grows from juvenile
Typically sold at ~4″ and reaches 22″ over ~2 years. Plan tank size for the adult, not the fish at purchase.Diet
Frozen mysis, blackworms, micro pellets — substrate sifter, NOT a predator despite looks
Notes
Eel-shaped purple-blue goby up to 24″ that looks like a sea monster but is a gentle micro-feeder. Sifts sand for tiny food and cannot compete with quick eaters at feeding time — drop food directly in front of its hide. Needs low-end brackish (specific gravity 1.005–1.010) for long-term health.
Photo: Kitty Kat Katarina / Wikimedia Commons · Source · CC-BY-SA-4.0