Can Apistogramma baenschi (Inca 50) and Common Pleco Live Together?

Not Recommended

Apistogramma baenschi (Inca 50) and Common Pleco are not recommended as tank mates due to slime coat eaters target slow-moving fish, causing severe stress and health issues.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Apistogramma baenschi (Inca 50)

Apistogramma baenschi

Common Pleco

Hypostomus plecostomus

🐠Family Group
Apistogramma baenschi (Inca 50)
Cichlids - South American
Common Pleco
Catfish
Temperament
Apistogramma baenschi (Inca 50)
Semi-Aggressive (5/10)
Common Pleco
Mostly Peaceful (4/10)
Temperature
βœ“ Compatible
Apistogramma baenschi (Inca 50)
22–26Β°C
Common Pleco
20–28Β°C
pH Range
βœ“ Compatible
Apistogramma baenschi (Inca 50)
4–6.5
Common Pleco
6–8
Hardness (dGH)
βœ“ Compatible
Apistogramma baenschi (Inca 50)
1–5
Common Pleco
4–15
Water Type
βœ“ Compatible
Apistogramma baenschi (Inca 50)
Freshwater Only
Common Pleco
Freshwater Only
Flow Preference
βœ“ Compatible
Apistogramma baenschi (Inca 50)
Low
Common Pleco
Moderate
Min Tank Volume
Combined: 500 L
Apistogramma baenschi (Inca 50)
60 L
Common Pleco
500 L
Swimming Level
Shared: 1 zone
Apistogramma baenschi (Inca 50)
Bottom
Common Pleco
Bottom
🏷️Behavior Tags
Apistogramma baenschi (Inca 50)
Territorial (Defends specific area)Fry PredatorDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)
Common Pleco
NocturnalPlant DestroyerSlime Coat Eater (Attacks Flat Fish)Territorial (Defends specific area)
Stocking calculator

Can your tank handle Apistogramma baenschi (Inca 50) and Common Pleco?

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.

Apistogramma baenschi (Inca 50)
Common Pleco
Test both in my tank

Behaviour & Temperament

Apistogramma baenschi (Inca 50) is a moderately assertive species (5/10), while Common Pleco is generally mild-mannered (4/10). This modest difference means Apistogramma baenschi (Inca 50) may occasionally assert dominance over Common Pleco.

Apistogramma baenschi (Inca 50) and Common Pleco 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.

There is a critical concern: the Shy / Slow Moving (Easily Stressed) behaviour of one fish directly conflicts with the Slime Coat Eater (Attacks Flat Fish) trait of the other β€” slime coat eaters target slow-moving fish, causing severe stress and health issues..

Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.

Worth noting: Common Pleco 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 22Β°C and 26Β°C. Aim for the midpoint of this range (around 24.0Β°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 4–5 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Apistogramma baenschi (Inca 50) and Common Pleco together, plan for an aquarium of at least 500 litres with a minimum length of 150 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), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Apistogramma baenschi (Inca 50) and Common Pleco.

Frequently Asked Questions

Can Apistogramma baenschi (Inca 50) and Common Pleco live together?

No. This combination is not recommended. Key incompatibilities β€” such as critical behavioural conflicts β€” make cohabitation unsafe.

What size tank do Apistogramma baenschi (Inca 50) and Common Pleco need?

A minimum of 500 litres (tank length at least 150 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 Apistogramma baenschi (Inca 50) and Common Pleco together?

Keep the aquarium between 22Β°C and 26Β°C. A target of around 24.0Β°C sits comfortably within both species' preferred ranges.

Are Apistogramma baenschi (Inca 50) or Common Pleco aggressive?

Apistogramma baenschi (Inca 50) is moderately assertive (5/10) and Common Pleco is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Apistogramma baenschi (Inca 50) and Common Pleco need?

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

How do I manage Apistogramma baenschi (Inca 50)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Apistogramma baenschi (Inca 50) 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 Common Pleco being nocturnal affect compatibility?

Common Pleco 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 Common Pleco during evening hours.


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