Thorichthys aureus “Blue”
Remarks: Thorichthys aureus “Blue” shares a common ancestor with Firemouths, one of the most popular cichlids in the world. You can treat them the same as you would a Firemouth – a 40-gallon tank or larger will suffice for a pair or small group. They can be kept with small or medium Central American cichlids as well as peaceful South American cichlids. Livebearers such as swordtails make for excellent dither in a breeding tank.
Scientific Name: Thorichthys aureus “Blue”
Common Name: Blue Thorichthys
Max Size: 6″
| Parameter | Value |
|---|---|
| pH | 6.0-8.0 |
| Hardness | Hard |
| Temperature | 70-82° |
| Aggressiveness | Semi-Aggressive |
FAQ
What is the ideal tank size for keeping Thorichthys aureus “Blue”?
A 40-gallon tank or larger is recommended for a pair or small group.
Can Thorichthys aureus “Blue” be kept with other cichlids?
Yes, they can be kept with small or medium Central American cichlids as well as peaceful South American cichlids.
What are the temperature and pH requirements for this species?
They thrive in water temperatures between 70-82°F and a pH range of 6.0-8.0.


Molly Payne –
The Blue Thorichthys are active and colorful. I kept them with a few peaceful South American cichlids and they coexist well. The tank setup was simple, and they adapted quickly. Great for a beginner who wants a vibrant cichlid without the aggression of more dominant species.
Blake Clarkson –
They are semi-aggressive but not overly so. I paired them with swordtails and they get along well. The water parameters are easy to maintain, and they stay active throughout the day. A good choice for a mid-sized community tank.
Fiona Hudson –
I’ve had these fish for three months now and they are very healthy. The color is striking, especially in the light. They don’t dominate the tank like some other cichlids, making them ideal for shared environments with other species.