Can Achara Catfish and Port Acara Live Together?

Possible with Caution

Keeping Achara Catfish and Port Acara together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 1500 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Achara Catfish

Leiarius marmoratus

Port Acara

Cichlasoma portalegrense

🐠Family Group
Achara Catfish
Catfish
Port Acara
Cichlids - South American
Temperament
Achara Catfish
Semi-Aggressive (6/10)
Port Acara
Semi-Aggressive (5/10)
Temperature
βœ“ Compatible
Achara Catfish
22–28Β°C
Port Acara
22–28Β°C
pH Range
βœ“ Compatible
Achara Catfish
6–7.5
Port Acara
6–7.5
Hardness (dGH)
βœ“ Compatible
Achara Catfish
4–15
Port Acara
3–15
Water Type
βœ“ Compatible
Achara Catfish
Freshwater Only
Port Acara
Freshwater Only
Flow Preference
βœ“ Compatible
Achara Catfish
Moderate
Port Acara
Low
Min Tank Volume
Combined: 1500 L
Achara Catfish
1500 L
Port Acara
150 L
Swimming Level
Shared: 1 zone
Achara Catfish
Bottom
Port Acara
MiddleBottom
🏷️Behavior Tags
Achara Catfish
Piscivore (Eats small/nano fish)NocturnalShrimp EaterFry PredatorDigger (Disturbs Substrate)
Port Acara
Digger (Disturbs Substrate)Territorial (Defends specific area)Fry Predator
Stocking calculator

Can your tank handle Achara Catfish and Port Acara?

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.

Achara Catfish
Port Acara
Test both in my tank

Behaviour & Temperament

Achara Catfish is a moderately assertive species (6/10), while Port Acara is moderately assertive (5/10). This modest difference means Achara Catfish may occasionally assert dominance over Port Acara.

Achara Catfish and Port Acara 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: Achara 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 Achara Catfish and Port Acara 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 22Β°C and 28Β°C. Aim for the midpoint of this range (around 25.0Β°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 4–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Achara Catfish and Port Acara together, plan for an aquarium of at least 1500 litres with a minimum length of 240 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 β€” caves, driftwood, and dense plant clusters β€” so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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 Achara Catfish and Port Acara live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1500 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Achara Catfish and Port Acara need?

A minimum of 1500 litres (tank length at least 240 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 Achara Catfish and Port Acara together?

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

Are Achara Catfish or Port Acara aggressive?

Achara Catfish is moderately assertive (6/10) and Port Acara is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Achara Catfish and Port Acara need?

Both species overlap in the 6–7.5 pH range. Consistency is key β€” avoid sudden swings, and test regularly to stay within this window.

How do I manage Port Acara's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Port Acara space to claim a territory without encroaching on the other fish's area. Adding dΓ©cor that divides the tank into distinct zones works especially well.

Does Achara Catfish being nocturnal affect compatibility?

Achara 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 Achara Catfish during evening hours.


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