Cobalt Blue Cichlid
Cichlidae sp.
The Cobalt Blue Cichlid (Cichlidae sp.) is an aggressive fish that's best left to experienced keepers. Give it a tank of at least 170 litres (45 US gallons), water held at 75-82°F, and a pH of 6.5-8.5.
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.
Cobalt Blue Cichlid Tank Setup
Give them at least 170 litres (45 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 75-82°F and a pH around 6.5-8.5. They reach about 13 cm as adults, so don't be misled by the small juveniles sold in stores.
What Do Cobalt Blue 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.
Cobalt Blue Cichlid Tank Mates
May nip fins; avoid with long-finned or slow tankmates. Predatory; may eat small fish or inverts. The Cobalt Blue 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 Cobalt Blue 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.
Cobalt Blue Cichlid - frequently asked questions
What size tank do Cobalt Blue Cichlids need?
Cobalt Blue Cichlids need a tank of at least 170 litres (45 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 Cobalt Blue Cichlids need?
Keep them at 75-82°F with a pH of 6.5-8.5, 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 Cobalt Blue Cichlids eat?
Cobalt Blue 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 Cobalt Blue Cichlids good for beginners?
Cobalt Blue Cichlids are not a beginner species. They need precise conditions and consistent maintenance, so build experience with hardier fish before keeping them.
Common mistakes with Cobalt Blue Cichlids
- Underestimating tank size - the minimum footprint is 170 litres (45 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.
- Mixing with long-finned fish - Cobalt Blue 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 Cobalt Blue 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
- Cardinal TetraSize risk - Cobalt Blue Cichlids will likely eat Cardinal Tetra at adult size
