Blockhead Cichlid
Cichlidae sp.
Blockhead Cichlid (Cichlidae sp.) — Advanced care, Aggressive, under Cichlid. Minimum tank in the app: 25 US gal min; aim for 75–82°F and pH 6.5–8.5. The Blockhead Cichlid is a captivating choice for experienced aquarists seeking a bold, territorial fish.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Africa / South America (varies)
- Africa
- South America
Regional colours match the stocking calculator’s origin map.
Blockhead Cichlid Tank Setup
To create an optimal environment for Blockhead Cichlids, prioritize a layout that balances open swimming areas with ample hiding spots using rock formations and driftwood. A sandy substrate mimics their natural habitat and minimizes injury. Moderate water flow is beneficial, and lighting should be moderate to low to provide a sense of security while allowing for observation of their activities.
What Do Blockhead Cichlids Eat?
Blockhead Cichlids are omnivores that may compete aggressively for food, especially in mixed-species setups. They thrive on a varied diet that supports their health and coloration, which can be enhanced through high-quality pellets, frozen foods, and occasional vegetable matter.
Blockhead Cichlid Tank Mates
Ideal companions for Blockhead Cichlids include robust, similarly sized species that can hold their own, such as certain larger barbs or other cichlids. Avoid long-finned or slow-moving fish, as they are at high risk of fin nipping. Intraspecies interactions can be complex; keeping multiple Blockheads can lead to hierarchy formations, but overcrowding should be avoided as it may increase aggression.
Are Blockhead Cichlids Good for Beginners?
This sits in the advanced range in the app. Strong filtration, stable chemistry, and reading up before purchase matter more than a catchy shop name. Aquarists often underestimate the aggression level of Blockhead Cichlids, leading to poor tankmate choices that result in stress or fatalities. neglecting to provide sufficient cover can escalate territorial disputes and stress.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




