Black Gullet Cichlid (Thorichthys pasionis “Black Gullet”)
The Black Gullet Cichlid is an attractive Central American cichlid known for its yellow-gold body tones, darker throat markings and bold display behaviour. Closely related in care style to other Thorichthys species, it is best suited to mature aquariums with open swimming space, sand or fine substrate, smooth rockwork, wood and carefully chosen tankmates. It is usually less aggressive than many larger Central American cichlids, but it can still become territorial, especially when mature or breeding.
Key Features
| Feature | Detail |
|---|---|
| Species | Thorichthys pasionis |
| Origin | Central America |
| Size | Up to 6 inches (15 cm) |
| Temperament | Medium to territorial, especially during breeding |
| Water Conditions | Temperature: 75-82°F (24-28°C), pH: 6.0–7.5, Hardness: 3–8 dGH |
| Substrate | Sand or fine gravel |
| Compatibility | Best with non-aggressive, similarly sized cichlids and community fish |
FAQ
What is the typical size of a Black Gullet Cichlid?
The Black Gullet Cichlid can grow up to 6 inches (15 cm) in length.
Is the Black Gullet Cichlid aggressive?
It is generally less aggressive than many larger Central American cichlids, but it can become territorial, especially when mature or during breeding.
What kind of tank setup is best for this cichlid?
A mature aquarium with open swimming space, sand or fine substrate, smooth rockwork, wood, and compatible tankmates is ideal.

Jack Hodges –
The Black Gullet Cichlid is a striking fish with vibrant yellow-gold coloring and distinct throat markings. It’s active and displays interesting behaviors, especially during feeding. I keep it in a 55-gallon tank with smooth rocks and sand substrate. It’s not overly aggressive, but it does defend its space when breeding. A good choice for experienced aquarists looking for a colorful and engaging cichlid.
Ruth Jones –
This cichlid adds a lot of visual appeal to my tank. It’s more peaceful than I expected and enjoys swimming in open areas. I’ve included some driftwood and fine sand, which it seems to prefer. It’s not the most social fish, but it’s a great addition to a balanced community setup.
Alexandra McDonald –
The fish looks beautiful and is active in the tank. However, it became territorial after a few months, especially near the breeding area. I had to adjust the tank layout and add more hiding spots. Still, it’s a decent choice for a mature aquarium with proper space and compatible fish.