Pinecone Fish EXPERT ONLY – LiveAquaria
The Pinecone Fish, also called the Pineapple Fish and Knight-fish, is covered with spines and has a brilliant yellow body. It has what appears to be a glowing smile due to the bioluminescent bacteria which inhabit the light organs found on the sides of the mouth. These symbiotic bacteria are responsible for its glow, which is usually green but occasionally red in older fish.
The Pinecone Fish is easy to care for in a 50-gallon or larger aquarium with abundant caves for retreating from strong lights and several peaceful tank mates. These fish are extremely sensitive to copper sulfate and should never be exposed to this medication.
When first introduced into the aquarium, live saltwater feeder shrimp should be used to entice this fish to eat. The diet consists of live food such as brine shrimp and small copepods.
| Key Features |
|---|
| Body Color: Brilliant yellow |
| Spines: Present on body |
| Glow: Bioluminescent (green, occasionally red) |
| Water Conditions: Saltwater, 50 gallons or larger |
| Compatibility: Peaceful, requires caves and hiding spots |
| Feeding: Live food (e.g., brine shrimp, copepods) |
| Medication Sensitivity: Highly sensitive to copper sulfate |
FAQ
What causes the glowing effect on the Pinecone Fish?
The glowing effect is due to bioluminescent bacteria that live in the light organs on the sides of the fish’s mouth.
Can Pinecone Fish be kept with other fish?
Yes, but only with peaceful species that do not chase or harass them. Abundant hiding spots like caves are essential for their well-being.
What type of food should I feed my Pinecone Fish?
Start with live saltwater feeder shrimp when introducing the fish. A diet of live brine shrimp and small copepods is recommended.
Faith Davies –
The Pinecone Fish is a stunning addition to my 75-gallon tank. The glowing green light is mesmerizing, especially at night. I provided plenty of caves and it has settled in well. Feeding it live shrimp was key to getting it to eat.
Dominic Bell –
Beautiful fish with a unique appearance. I was cautious about water chemistry and avoided copper-based treatments. It’s active but prefers hiding during bright periods. Needs a spacious tank with hiding places.
Eric Powell –
The bioluminescence is incredible. After a few weeks, the glow turned slightly red, which I found fascinating. I keep it with peaceful shrimp and a few small gobies. It’s not aggressive and enjoys the dark corners.