Acara cichlid
Aequidens rondoni
A compact Amazon cichlid with a big personality and surprising longevity.

About
The Acara cichlid (Aequidens rondoni) is a relatively small but feisty cichlid native to the upper Tapajós River basin in Brazil, a tributary system within the broader Amazon drainage. Like many cichlids from that region, it sports the classic oval-bodied profile with iridescent scaling and subtle patterning typical of the Aequidens group. Understated compared to some of its showier relatives, but with a quiet attractiveness that grows on you the longer you keep it. What this fish lacks in size it makes up for in attitude. Despite being on the smaller end for a cichlid, it carries an aggressive temperament that you need to plan around when stocking a tank. Tankmates should be chosen carefully. Other robust fish of similar or larger size tend to work better than anything small or timid. That said, its care level is considered beginner-friendly, which makes it a reasonable entry point into the cichlid hobby as long as you respect its territorial nature. With good care, these fish can live up to 12 years, so this is a long-term commitment rather than a casual addition. A 40-gallon tank gives a single specimen or a pair enough territory to settle in without constant conflict.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Acara cichlid
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Acara cichlid get?
- The Acara cichlid reaches about 2.5–4.5" as an adult.
- What size tank does the Acara cichlid need?
- A minimum of 40 gallons is recommended for the Acara cichlid.
- What water parameters does the Acara cichlid need?
- The Acara cichlid does best with a temperature of 72–82°F, a pH of 6–7.5, hardness around 4–18 dGH.
- Is the Acara cichlid aggressive?
- The Acara cichlid is semi-aggressive. It can work in a community with careful tankmate choices and enough space.
- How long does the Acara cichlid live?
- With good care, the Acara cichlid typically lives 12 years.