Can Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish Live Together?

Possible with Caution

Keeping Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 3800 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)

Apistogramma barlowi

Red-Tail Catfish

Phractocephalus hemioliopterus

🐠Family Group
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Cichlids - South American
Red-Tail Catfish
Catfish
Temperament
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Mostly Peaceful (4/10)
Red-Tail Catfish
Aggressive (7/10)
Temperature
✓ Compatible
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
22–29°C
Red-Tail Catfish
20–28°C
pH Range
✓ Compatible
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
4.5–6.5
Red-Tail Catfish
6–7.5
Hardness (dGH)
✓ Compatible
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
1–5
Red-Tail Catfish
3–15
Water Type
✓ Compatible
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Freshwater Only
Red-Tail Catfish
Freshwater Only
Flow Preference
✓ Compatible
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Moderate
Red-Tail Catfish
Moderate
Min Tank Volume
Combined: 3800 L
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
54 L
Red-Tail Catfish
3800 L
Swimming Level
Shared: 1 zone
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
BottomMiddle
Red-Tail Catfish
Bottom
🏷️Behavior Tags
Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Territorial (Defends specific area)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)
Red-Tail Catfish
Piscivore (Eats small/nano fish)Plant DestroyerDigger (Disturbs Substrate)Nocturnal
Stocking calculator

Can your tank handle Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail 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.

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)
Red-Tail Catfish
Test both in my tank

Behaviour & Temperament

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) is a generally mild-mannered species (4/10), while Red-Tail Catfish is semi-aggressive (7/10). This modest difference means Red-Tail Catfish may occasionally assert dominance over Barlow's Dwarf Cichlid (Apistogramma Maulbrüter).

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail 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.

Worth noting: Red-Tail Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 6.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 3–5 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish together, plan for an aquarium of at least 3800 litres with a minimum length of 300 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, 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.

Frequently Asked Questions

Can Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 3800 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish need?

A minimum of 3800 litres (tank length at least 300 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 Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) or Red-Tail Catfish aggressive?

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) is generally mild-mannered (4/10) and Red-Tail Catfish is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) and Red-Tail Catfish need?

Both species overlap in the 6–6.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Barlow's Dwarf Cichlid (Apistogramma Maulbrüter) 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 Red-Tail Catfish being nocturnal affect compatibility?

Red-Tail 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 Red-Tail Catfish during evening hours.


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