Green Terror Cichlid
Andinoacara rivulatus
The Green Terror Cichlid (Andinoacara rivulatus) is an aggressive fish that's a good step up once you have a little experience. Give it a tank of at least 380 litres (100 US gallons), water held at 68-79°F, and a pH of 6.5-8.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
South America
- South America
Regional colours match the stocking calculator's origin map.
Green Terror Cichlid Tank Setup
Give them at least 380 litres (100 US gallons). Cichlids are territorial and produce plenty of waste, so strong filtration and some rocks or wood to break up sight lines both help. Aim for 68-79°F and a pH around 6.5-8. They grow to around 30 cm, so plan the tank size and filtration for a full-grown adult rather than the small juvenile you see in the shop.
What Do Green Terror Cichlids Eat?
They're not fussy eaters - feed a varied diet, rotating good-quality dry, frozen, and gel foods rather than the same thing every day, and match the food size to their mouths.
Green Terror Cichlid Tank Mates
Highly aggressive; will attack most tankmates. Predatory toward smaller fish. Large tank essential. The Green Terror Cichlid is aggressive, which is the first thing to weigh up when you choose tank mates. It's a known fin-nipper, so avoid bettas, guppies, and other slow, long-finned fish. It's predatory, so anything small enough to fit in its mouth will be treated as food rather than a companion. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are Green Terror Cichlids Good for Beginners?
Not a sensible first purchase. Get the tank cycled, keep easier fish stable for a year, then revisit if you still want the extra work this species demands.
Green Terror Cichlid - frequently asked questions
What size tank do Green Terror Cichlids need?
Green Terror Cichlids need a tank of at least 380 litres (100 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
What water parameters do Green Terror Cichlids need?
Keep them at 68-79°F with a pH of 6.5-8, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do Green Terror Cichlids eat?
Green Terror Cichlids are omnivores and aren't fussy eaters. Feed a varied mix of good-quality dry, frozen, and gel foods, and match the food size to their mouths. Feed small amounts once or twice a day, and remove anything they don't eat.
Are Green Terror Cichlids good for beginners?
Green Terror Cichlids are best for keepers with a little experience. They are manageable once you test water regularly and catch problems early; a complete beginner may prefer something more forgiving first.
Common mistakes with Green Terror Cichlids
- Underestimating tank size - the minimum footprint is 380 litres (100 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.
- Mixing with long-finned fish - Green Terror Cichlids will nip at bettas, angelfish, and other fish with flowing fins, causing stress and infection risk.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Fish to avoid mixing with Green Terror Cichlids
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- Pea PufferPredator - Pea Puffer will eat or injure smaller tank mates
- Betta (Male)Predator - Betta (Male) will eat or injure smaller tank mates
- Neon TetraSize risk - Green Terror Cichlids will likely eat Neon Tetra at adult size
