malawi

Otopharynox Lithobates Black Orange Dorsal

🐟 Otopharynx lithobates “Black / Orange Dorsal” — Species Description
📏 Size

Adult size: 12–15 cm (5–6 inches)

Males grow larger and more elongated than females

Females remain smaller and more subdued in color

🌍 Occurrence (Natural Origin)

Endemic to Lake Malawi, East Africa

Found around rock–sand transition zones

Typically inhabits:

Sandy bottoms adjacent to rocky reefs

Intermediate depths

Often associated with scattered rocks rather than dense Mbuna reefs

Otopharynx lithobates is a true Haplochromine species, not an Mbuna.

🎨 Appearance

Adult males:

Deep black to dark blue body

Bright orange to red dorsal fin (the defining feature)

Metallic blue highlights on head and flanks

Females & juveniles:

Silver-grey to beige

Faint barring or spotting

The “Black / Orange Dorsal” name refers specifically to dominant males

🍽️ Diet (Preferred Food)

In the wild:

Benthic invertebrate feeder

Feeds on:

Small crustaceans

Insect larvae

Microfauna in sandy substrates

In the aquarium:

High-quality Malawi Hap / Peacock pellets

Frozen foods:

Mysis shrimp

Brine shrimp

Krill (small amounts)

Occasional live foods (where safe and legal)

⚠️ Avoid herbivore-only diets and excessive fatty foods.

🧠 Behavior & Temperament

Moderately peaceful Hap

Territorial during breeding, but far calmer than Mbuna

Males display to females rather than fight constantly

Best kept:

In Hap / Peacock community tanks

With species like Aulonocara, Copadichromis, Otopharynx, Placidochromis

Not suitable with aggressive Mbuna

🏞️ Preferred Aquarium Conditions

Tank size: Minimum 300–350 L (75–90 gallons)

pH: 7.8–8.6

Hardness: Moderate to hard

Temperature: 24–28 °C (75–82 °F)

Substrate: Fine sand (important for natural feeding behavior)

Décor: Open sand areas with some rock structures

🧾 Quick Summary
Feature Details
Scientific Name Otopharynx lithobates
Trade Name Black / Orange Dorsal
Group Haplochromine (Non-Mbuna)
Adult Size 12–15 cm (5–6 in)
Origin Lake Malawi
Diet Invertebrates, carnivorous pellets
Temperament Moderately peaceful
Best Setup Hap / Peacock community