Ophthalmotilapia Ventralis Mpimbwe Ophthalmotilapia ventralis Ophthalmotilapia ventralis Mpimbwe is a graceful Lake Tanganyika cichlid known for elegant fins, active movement, and a very different look from Malawi peacocks and haps. It appreciates hard, clean water, open sand, and a calmer Tanganyikan community. Origin and Habitat Native Region: Lake Tanganyika; Mpimbwe/Cape Mpimbwe form in the aquarium trade. Natural Habitat: Rock-sand transition zones and open areas near structure. Physical Characteristics Size: 5-6 inches. Coloration: Mature males show the strongest color and fin display; females and juveniles are more subdued. Body Shape: Slender Tanganyikan cichlid body with extended ventral fins. Behavior and Temperament Temperament: Mildly aggressive but easily stressed by overly rough tank mates. Social Behavior: Best in a Tanganyikan setup with room for males to display and females to avoid pressure. Aquarium Care Tank Size: A 75 gallon aquarium or larger is recommended. Water Parameters: 72-84°F, pH 7.4-8.6, hard alkaline water. Tank Setup: Provide sand, open swimming space, scattered rockwork, strong oxygenation, and stable water quality. Diet and Feeding Primary Staple: Feed a quality daily diet such as Ron’s Peacock & Hap Adult Food. Juveniles: Growing fish can be fed Ron’s Juvenile Food. Fry: Newly released fry should be started on Ron’s Fry Food. Feeding Frequency: Feed 1–2 small meals daily and avoid overfeeding. Breeding Breeding Type: Maternal mouthbrooder. Breeding Notes: Males display over open areas and females hold eggs and fry in the mouth. Fry should be protected after release. Tank Mates Compatible With: Calmer Tanganyikan cichlids that are not overly aggressive or fin-nippy. Avoid: Rough mbuna, large predators, and cramped tanks without open sand.