Boops featherfin
Ophthalmotilapia boops
Also known as Big-eye featherfin
Care at a glance
- Temperature
- 75–81°F (24–27°C)
- pH
- 8.0–9.0
- Adult size
- 5.9 in (15 cm)
- Minimum tank
- 106 gal (400 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Difficult
- Breeding
- Hard
- Rarity
- Rare
- Origin
- Lake Tanganyika, Tanzanian coast
- Family
- Cichlidae
Overview
The boops featherfin is a slender, elegant Tanganyikan cichlid for a large, mature tank. Keep it as a harem, one male with a group of females, and give it height and open water; males build and defend sand nests while the females hold above. It is peaceful toward other species, but males spar with each other, so keep a single male unless the tank is very large, and pair it with calm Tanganyikans. It feeds on plankton and fine foods, so offer small frozen items like cyclops and mysis along with quality flake and small pellets. A tank of around 400 liters or more, tall and long, suits a colony.
In the wild
Ophthalmotilapia boops lives along Tanganyika's Tanzanian coast where rock meets open sand, in clear, sunlit water. Recreate that with rock structure backing onto broad open sand where a male can build his nest, plus room to swim. The lake is very hard, alkaline, and warm, so hold 24 to 27 C and a pH of 8.0 to 9.0 with strong filtration and bright light.
Good to know
Ophthalmotilapia boops belongs to the cichlid family and reaches about 15 centimeters. Breeding males grow long trailing pelvic-fin filaments tipped with yellow, and the species is a maternal mouthbrooder of hard difficulty. The female snaps at those bright fin tips, mistaking them for eggs, which draws her close to the male so he can fertilize the clutch she already holds in her mouth.
Did you know
The name boops is Greek for ox-eyed, a term Homer used as a compliment for the goddess Hera. Here it is spent on a big-eyed plankton feeder from the rocky coast of Lake Tanganyika.
Tank mates
Boops featherfin is a mostly peaceful, social species that keeps to the middle. These picks match on water type, temperature, pH, size and temperament.

Blackchin sand diver
Xenotilapia melanogenysFreshwater5.9 in (15 cm)106 gal (400 L)75–81°F (24–27°C)
Blue zaire frontosa
Cyphotilapia gibberosaFreshwater13.8 in (35 cm)119 gal (450 L)75–81°F (24–27°C)
Even-Spotted squeaker
Synodontis petricolaFreshwater4.7 in (12 cm)45 gal (170 L)75–82°F (24–28°C)Brien's cichlid
Paracyprichromis brieniFreshwater4.3 in (11 cm)66 gal (250 L)75–81°F (24–27°C)Flame callochromis
Callochromis pleurospilusFreshwater3.9 in (10 cm)66 gal (250 L)75–81°F (24–27°C)
Black calvus
Altolamprologus calvusFreshwater5.1 in (13 cm)53 gal (200 L)75–81°F (24–27°C)
Common questions
What size tank does a Boops featherfin need?
A Boops featherfin needs at least 106 gal (400 L). It spends most of its time in the middle.
What temperature and pH do Boops featherfin need?
Boops featherfin are comfortable at 75–81°F (24–27°C) with a pH of 8.0–9.0.
How big do Boops featherfin get?
An adult Boops featherfin reaches about 5.9 in (15 cm).
Where to buy
Some links may not be the exact species or variety.
- Imperial Tropicals Freshwater fish and inverts bred at a Florida hatchery
- The Wet Spot Tropical Fish Large selection of quarantined tropical freshwater fish, with live arrival guarantee and Next Day Air flat rate shipping to all US locations
…or ask your local fish store.
Appears in
Keeping Boops featherfin?
Track water tests, reminders and stocking fit.
Planning tankmates
See how Boops featherfin fits a stocking plan. Open the stocking calculator
Add to your site
Show this species on your own site: a shortcode for WordPress, or an HTML embed for anywhere else.
Related species

Nasuta featherfin
Ophthalmotilapia nasutaFreshwater7.1 in (18 cm)79 gal (300 L)75–81°F (24–27°C)
Ventralis featherfin cichlid
Ophthalmotilapia ventralisFreshwater5.9 in (15 cm)61 gal (230 L)73–81°F (23–27°C)
Azureus
Copadichromis azureusFreshwater5.9 in (15 cm)79 gal (300 L)77–82°F (25–28°C)
Blue acara
Andinoacara pulcherFreshwater5.9 in (15 cm)42 gal (160 L)72–82°F (22–28°C)
Marlier's julie
Julidochromis marlieriFreshwater5.9 in (15 cm)29 gal (110 L)73–81°F (23–27°C)Atripinnis hap
Copadichromis atripinnisFreshwater5.9 in (15 cm)70 gal (265 L)75–82°F (24–28°C)