Tank setup
A minimum 120L aquarium suits Bicolor Blenny. Use robust décor and sight breaks; territorial species need defined territories.
Where to buy
Compare prices from SA aquarium shops listing Bicolor Blenny.
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Overview
What to know before you buy.
The Bicolor Blenny is a popular and entertaining fish with a distinct two-toned body: a dark, purplish-blue front half and a bright orange-yellow back half. They are full of personality, spending their time perching on rocks, peeking out of holes, and grazing on algae. They require a tank with mature live rock to provide both food and shelter. While peaceful towards most fish, they can be highly territorial and aggressive towards other blennies or fish with a similar body shape. A fascinating behavior is their 'perching,' where they use their modified pelvic fins to sit upright on surfaces, much like a person sitting on a stool.
Key traits
territorial
community
reef safe
small
easy
omnivore
herbivore
Compatibility
Select a tank to see how this species fits.
Care guide
Everything you need to keep Bicolor Blenny healthy in a South African setup.
Water parameters
Keep pH 8.1–8.4 and 24–28°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Feeding
Bicolor Blenny is omnivore. Feed a varied diet appropriate for saltwater fish — quality flakes, pellets, or frozen foods sized to the mouth.
Behaviour
Bicolor Blenny is generally territorial. Observe during feeding and at lights-out for true temperament.
Tankmates
Pair with similarly sized territorial tankmates in saltwater fish. Avoid fin-nippers or species that outgrow this fish.
Breeding
Breeding notes for Bicolor Blenny vary by line and water chemistry — ask your local shop about proven pairs in SA.
Keeping marine fish?
Marine chemistry moves daily — the foundation sets keep calcium, alkalinity and magnesium honest.
Availability confirmed with the distributor before dispatch · free delivery over r750
Community photos
From hobbyists across SA.
Photo by FishHubAdmin
Market intelligence
Price trends and buyer demand — data only FishHub tracks.
Price history — last 90 days
SA price range this month: R175–175 · Average: R175
This data is unique to FishHub
Demand by province
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Often kept with
Real pairwise verdicts for Bicolor Blenny, not a same-category guess. Always confirm adult size and your tank's specifics before buying.
- Often kept together
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In a 120L+ tank
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Six-spot Goby
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Lysmata debelius
In a 120L+ tank
- Often kept together
Zoanthid Colony (various colors)
Zoanthus sp.
In a 120L+ tank
- Often kept together
Flame Angelfish
Centropyge loricula
In a 120L+ tank
- Often kept together
Six Line Wrasse
Pseudocheilinus hexataenia
In a 120L+ tank
- Often kept together
Banded Boxing Shrimp
Stenopus hispidus
In a 120L+ tank