Overview
The convict cichlid gets its name from the black-and-white stripes running down its body, which look just like an old-fashioned prison uniform. It comes from the warm streams and lakes of Central America, in countries like Nicaragua, Honduras, and Costa Rica. Though it is small, it has a very big personality and is not afraid of fish much larger than itself.
Convicts are one of the easiest cichlids to breed, which makes them a favorite for people who want to watch fish raise babies. Parents fiercely guard their eggs and fry, chasing away anything that comes too close. This bravery is fun to watch but means convicts can be bullies, so they need the right tank and tankmates.
| Care level | Easy |
| Adult size | 4-6 in (10-15 cm) |
| Lifespan | 8-10 years |
| Temperament | Feisty and territorial |
| Min. tank | 30 gal (115 L) |
| Temperature | 72-82°F (22-28°C) |
| pH | 6.5-8.0 |
| Diet | Omnivore |
| Schooling | No, best as a pair |
Water and tank
A pair of convicts is comfortable in about 30 gallons, though more room helps keep the peace. They are hardy and adapt to a wide range of water, which is part of why they are so easy to keep. Clean, filtered water and stable temperatures keep them healthy for years.
Aquascape and setup
Give convicts plenty of caves, flowerpots, and rock piles, because they love to claim a territory and dig. They may rearrange gravel and uproot loose plants, so use hardy plants or attach them to wood and rock. A cave often becomes their chosen nesting spot.
Diet
Convicts are hungry omnivores that eat almost anything. A good cichlid pellet forms the base of the diet, with frozen bloodworms, brine shrimp, and blanched vegetables added for variety. Do not overfeed, as they will happily eat far more than they need.
Tankmates and temperament
This fish is feisty and territorial, especially when breeding. Keep convicts with other tough Central American cichlids or robust fish that can hold their own. They are a poor choice for a gentle community tank, where they may bully calmer neighbors.
Amazing parents
Convict cichlids are model fish parents. A bonded pair digs a nest, lays eggs, and then both mother and father guard the babies with total dedication. Watching the parents shepherd a cloud of tiny fry around the tank is one of the best shows in the hobby.
Fun facts
- Their black-and-white stripes look like a prison uniform, giving them their name.
- They are one of the easiest cichlids to breed in a home aquarium.
- Both parents guard their eggs and babies with fearless dedication.
- A small convict will chase off fish many times its own size.
- They come from the warm streams and lakes of Central America.
Frequently asked questions
Can I keep convict cichlids in a community tank?
It is risky. Convicts are territorial and can bully peaceful fish, especially while breeding. They do best with other tough cichlids or in their own species tank.
How can I tell a male from a female convict?
Males grow larger with longer, pointed fins, while females are smaller and often show an orange or pink patch on the belly. This makes pairs fairly easy to sex.
Why are convict cichlids good for beginners?
They are hardy, adapt to many water types, eat almost anything, and breed easily. That toughness makes them forgiving of small mistakes as you learn.
Will convicts breed on their own?
Very likely. Give a healthy pair a cave and good food and they will often spawn without any special effort, then raise the fry themselves.
