Can Bristlenose Pleco and False Rummy-Nose Tetra Live Together?

Ideal Tank Mates

Yes, Bristlenose Pleco and False Rummy-Nose Tetra are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 80 litres is recommended.


At a Glance

Bristlenose Pleco

Ancistrus cf. cirrhosus

False Rummy-Nose Tetra

Petitella georgiae

🐠Family Group
Bristlenose Pleco
Catfish
False Rummy-Nose Tetra
Characins
Temperament
Bristlenose Pleco
Peaceful (2/10)
False Rummy-Nose Tetra
Peaceful (1/10)
Temperature
✓ Compatible
Bristlenose Pleco
22–27°C
False Rummy-Nose Tetra
22–28°C
pH Range
✓ Compatible
Bristlenose Pleco
6–7.5
False Rummy-Nose Tetra
5–7.5
Hardness (dGH)
✓ Compatible
Bristlenose Pleco
4–15
False Rummy-Nose Tetra
1–12
Water Type
✓ Compatible
Bristlenose Pleco
Freshwater Only
False Rummy-Nose Tetra
Freshwater Only
Flow Preference
✓ Compatible
Bristlenose Pleco
Moderate
False Rummy-Nose Tetra
Moderate
Min Tank Volume
Combined: 80 L
Bristlenose Pleco
75 L
False Rummy-Nose Tetra
80 L
Swimming Level
✓ Different zones
Bristlenose Pleco
Bottom
False Rummy-Nose Tetra
Middle
🏷️Behavior Tags
Bristlenose Pleco
Nocturnal
False Rummy-Nose Tetra
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Bristlenose Pleco and False Rummy-Nose Tetra?

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.

Bristlenose Pleco
False Rummy-Nose Tetra
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Behaviour & Temperament

Bristlenose Pleco is a peaceful species (2/10), while False Rummy-Nose Tetra is peaceful (1/10). This modest difference means Bristlenose Pleco may occasionally assert dominance over False Rummy-Nose Tetra.

In terms of spatial distribution, Bristlenose Pleco prefers the Bottom (Substrate) zone, whereas False Rummy-Nose Tetra occupies the Middle (Open Water) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Bristlenose 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 22°C and 27°C. Aim for the midpoint of this range (around 24.5°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 4–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bristlenose Pleco and False Rummy-Nose Tetra together, plan for an aquarium of at least 80 litres with a minimum length of 80 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: Driftwood (Digestion/Hiding), Established Algae (Otocinclus), Plants - Densely covered, Leaf Litter/Blackwater. 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.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bristlenose Pleco and False Rummy-Nose Tetra.

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Frequently Asked Questions

Can Bristlenose Pleco and False Rummy-Nose Tetra live together?

Yes. Bristlenose Pleco and False Rummy-Nose Tetra are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Bristlenose Pleco and False Rummy-Nose Tetra need?

A minimum of 80 litres (tank length at least 80 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 Bristlenose Pleco and False Rummy-Nose Tetra together?

Keep the aquarium between 22°C and 27°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.

Are Bristlenose Pleco or False Rummy-Nose Tetra aggressive?

Bristlenose Pleco is peaceful (2/10) and False Rummy-Nose Tetra is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bristlenose Pleco and False Rummy-Nose Tetra need?

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

Does Bristlenose Pleco being nocturnal affect compatibility?

Bristlenose 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 Bristlenose Pleco during evening hours.


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