Can Brevis Shelldweller and Spotted Raphael Catfish Live Together?
Brevis Shelldweller and Spotted Raphael Catfish are not recommended as tank mates due to conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Can your tank handle Brevis Shelldweller and Spotted Raphael Catfish?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
Behaviour & Temperament
Brevis Shelldweller is a moderately assertive species (5/10), while Spotted Raphael Catfish is peaceful (2/10). This modest difference means Brevis Shelldweller may occasionally assert dominance over Spotted Raphael Catfish.
Brevis Shelldweller and Spotted Raphael Catfish both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.
Worth noting: Spotted Raphael Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.
Water Parameters
The safe temperature window for both species falls between 24°C and 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.
The pH requirements of Brevis Shelldweller (8–9) and Spotted Raphael Catfish (5.8–7.5) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Brevis Shelldweller and Spotted Raphael Catfish together, plan for an aquarium of at least 110 litres with a minimum length of 90 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.
Specific environmental needs for this combination include: Sand (Sifters), Shells (Breeding/Hiding), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.
Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.
Why This Pairing Usually Fails in Practice
Brevis Shelldweller and Spotted Raphael Catfish are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Brevis Shelldweller and Spotted Raphael Catfish.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 10 more tank sizes
Diet & Feeding
Feeding time deserves special attention with this pairing. Spotted Raphael Catfish is a known shrimp eater and may prey on small invertebrates or nano fish like Brevis Shelldweller.
Frequently Asked Questions
Can Brevis Shelldweller and Spotted Raphael Catfish live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Brevis Shelldweller and Spotted Raphael Catfish need?
A minimum of 110 litres (tank length at least 90 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.
What water temperature is best for Brevis Shelldweller and Spotted Raphael Catfish together?
Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Brevis Shelldweller or Spotted Raphael Catfish aggressive?
Brevis Shelldweller is moderately assertive (5/10) and Spotted Raphael Catfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Brevis Shelldweller and Spotted Raphael Catfish need?
Their pH requirements do not overlap. Brevis Shelldweller prefers 8–9, while Spotted Raphael Catfish needs 5.8–7.5. This makes them incompatible in the same water chemistry.
How do I manage Brevis Shelldweller's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Brevis Shelldweller space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
Does Spotted Raphael Catfish being nocturnal affect compatibility?
Spotted Raphael Catfish is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Spotted Raphael Catfish during evening hours.
Shared setup supplies
We may earn from qualifying purchases
Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- May 11, 2026
- Last updated
- May 11, 2026
- Issues or corrections?
- Contact the editorial team
Related Comparisons
Brevis Shelldweller & African Butterfly Cichlid
·
Brevis Shelldweller & Altolamprologus Calvus
·
Brevis Shelldweller & Altolamprologus Compressiceps
·
Brevis Shelldweller & Aurora Yellow Mbuna
·
Brevis Shelldweller & Blue Dolphin (Hap)
·
Brevis Shelldweller & Buccochromis lepturus
·
Spotted Raphael Catfish & Banjo Catfish
·
Spotted Raphael Catfish & Black Fin Cory
·
Spotted Raphael Catfish & Black Marble Hoplo
·
Spotted Raphael Catfish & Brown Hoplo Catfish
·
Spotted Raphael Catfish & Incolicana Corydoras
·
Spotted Raphael Catfish & Loxozonus Corydoras (C079/C082)
·