Overview
The peacock cichlid is a stunning fish from Lake Malawi, one of the great lakes in East Africa. The males are famous for their electric colors, glowing in shades of blue, gold, orange, and purple that shine like a peacock's tail, which is exactly how they got their name. Females are a plainer silvery-brown, which helps them stay camouflaged while the flashy males show off.
In the wild, peacock cichlids cruise over the sandy floor of the lake, hovering just above the sand and using special sensors on their face to detect tiny creatures hidden below. They live in hard, mineral-rich water, so a home tank needs to match those conditions. They are semi-aggressive and are usually kept as one male with a group of females, giving a fish tank a splash of jaw-dropping color.
| Care level | Intermediate |
| Adult size | 4-6 in (10-15 cm) |
| Lifespan | 6-10 years |
| Temperament | Semi-aggressive |
| Min. tank | 55 gallons (208 L) |
| Temperature | 76-82 F (24-28 C) |
| pH | 7.5-8.5 |
| Diet | Carnivore |
| Schooling | No, kept as one male with several females |
Jewels of Lake Malawi
Lake Malawi is home to hundreds of cichlid species found nowhere else on Earth, and the peacock is one of its brightest stars. Its hard, alkaline water is very different from most tropical rivers, which is why keepers must match those conditions carefully.
Sand-sifting hunters
Peacock cichlids hover just above the sandy bottom and use tiny sensory pores on their face to sense small creatures buried in the sand. When they detect a meal, they dart down and dig it out, a hunting style called sand-sifting.
Males steal the show
Only the males wear the brilliant colors, which they flash to attract females and warn off rivals. Females and young fish stay a dull silvery-brown, so a colorful tank usually means you are looking at the males.
Mouths full of babies
Peacock cichlids are mouthbrooders, meaning the female carries her eggs and then her babies inside her mouth to keep them safe. She may not eat for days while protecting her tiny fry this way.
Keeping the peace
These fish are semi-aggressive, especially the males, who defend their territory. Keepers usually house one male with several females and give the tank plenty of rocks and caves so weaker fish can hide.
Fun facts
- Peacock cichlids come only from Lake Malawi in East Africa.
- Only the males show off the brilliant blue, gold, and orange colors.
- They hunt by sensing tiny creatures hidden in the sand with pores on their face.
- Females are mouthbrooders, carrying eggs and babies inside their mouths.
- Their lake water is hard and alkaline, unlike most tropical rivers.
Frequently asked questions
Why are only some of my peacock cichlids colorful?
The bright fish are the males. Females and young males stay a plain silvery-brown, and males often reach their fullest color as they mature and feel dominant in the tank.
What water do peacock cichlids need?
They come from Lake Malawi, so they need hard, alkaline water on the warm side. Matching those mineral-rich conditions is key to keeping them healthy.
Can I keep more than one male together?
It is tricky. Males can be aggressive with each other, so keepers often use one male with several females, or a larger tank with lots of rocky hiding spots to spread out the aggression.
How do peacock cichlids protect their babies?
The female is a mouthbrooder. She holds the eggs and then the newly hatched fry inside her mouth, only letting them out once they are big enough to be safer on their own.
