Remarks: Labeotropheus are easily distinguished from other mbuna genera by their curved, hanging snout. This special adaptation allows them to graze on rocks on an almost parallel plane, letting them feed on rocks that other fish may not be able to reach. The Thumbi West OB (L. trewavasae) males are typically OB patterned, though some Blue non-OB individuals can appear in batches. Females are typically orange and OB patterned. Scientific Name: Labeotropheus trewavasae Common Name: Thumbi West OB Max Size: 6" pH: 7.5-8.4 Hardness: Hard Temperature: 74-82° Aggressiveness: Aggressive Region of Origin: Lake Malawi, Africa Captive Bred or Wild: Captive Bred Diet: Spirulina flake, vegetables Compatibility: Mbuna - Labeotropheus, Labidochromis, Iodotropheus Cynotilapia Tank Mate Options: Yellow Lab Red Top Hongi Blue Cobalt Zebra