
William's Mbuna, Redtop Ice Blue (Pseudotropheus greishakei)
24–28°C · pH 7.5–8.5 · 200L

A territorial Lake Malawi mbuna from the Ndumbi/Pombo reef area. Red Top Ndumbi needs hard alkaline water, rockwork, vegetable-rich feeding and careful group planning.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Pseudotropheus sp. 'Red Top Ndumbi'
Red Top Ndumbi Cichlid bond and breed in male/female pairs — buying a pair gives them the social structure they need.
A territorial Lake Malawi mbuna from the Ndumbi/Pombo reef area. Red Top Ndumbi needs hard alkaline water, rockwork, vegetable-rich feeding and careful group planning.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.

Cichlids are one of the most diverse fish families in the hobby. From tiny apistogrammas to massive oscars, this guide covers the basics of keeping them well.
Maintain these water conditions for optimal health and vibrant colors
Red Top Ndumbi Cichlid (Pseudotropheus sp. 'Red Top Ndumbi') is a colourful rock-dwelling mbuna from the Ndumbi/Pombo reef area of Lake Malawi. It is not a peaceful community fish; plan it as a territorial hard-water cichlid with rockwork, sight breaks and a vegetable-rich diet.
| Listed identity | Pseudotropheus sp. 'Red Top Ndumbi' |
|---|---|
| Adult size | About 9-10cm |
| Minimum aquarium | 200 litres or larger |
| Water | 24-27°C, pH 7.5-8.5, hard alkaline water |
| Diet | Vegetable-rich mbuna pellets, spirulina and algae-based foods |
| Temperament | Aggressive mbuna; plan groups carefully |
Use stacked rocks with clear territories and open lanes. Avoid high-protein predator diets and do not mix with timid community fish. A planned male-to-female group helps spread attention and reduce pressure on one fish.
Order with clear care guidance. Livestock is packed for a licensed live-animal courier and covered by our Live Arrival Guarantee when the acclimation guidance is followed.

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 7.5–8.5 · 250L

18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 500L

20–27°C · pH 6–7 · 54L

23–27°C · pH 7.4–8.4 · 150L

24–28°C · pH 6.5–7.8 · 300L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

24–27°C · pH 7.5–8.8 · 150L

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 7.5–8.5 · 40L

24–28°C · pH 7.5–8.5 · 500L