Can Butterfly Pleco (L168) and Glowlight Tetra Live Together?
Yes, Butterfly Pleco (L168) and Glowlight 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 115 litres is recommended.
At a Glance
Can your tank handle Butterfly Pleco (L168) and Glowlight 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.
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Behaviour & Temperament
Butterfly Pleco (L168) is a peaceful species (2/10), while Glowlight Tetra is peaceful (1/10). This modest difference means Butterfly Pleco (L168) may occasionally assert dominance over Glowlight Tetra.
In terms of spatial distribution, Butterfly Pleco (L168) prefers the Bottom (Substrate) zone, whereas Glowlight 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: Butterfly Pleco (L168) 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 25°C and 28°C. Aim for the midpoint of this range (around 26.5°C) for optimal comfort.
Both fish can tolerate a pH between 5.5 and 7. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 2–10 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Butterfly Pleco (L168) and Glowlight Tetra together, plan for an aquarium of at least 115 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), Smooth Gravel (Sensitive Barbels), Plants - Densely covered, Leaf Litter/Blackwater, Plants - Floating. Meeting these requirements will help both species thrive.
Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Butterfly Pleco (L168) and Glowlight Tetra.
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
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Frequently Asked Questions
Can Butterfly Pleco (L168) and Glowlight Tetra live together?
Yes. Butterfly Pleco (L168) and Glowlight Tetra are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Butterfly Pleco (L168) and Glowlight Tetra need?
A minimum of 115 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 Butterfly Pleco (L168) and Glowlight Tetra together?
Keep the aquarium between 25°C and 28°C. A target of around 26.5°C sits comfortably within both species' preferred ranges.
Are Butterfly Pleco (L168) or Glowlight Tetra aggressive?
Butterfly Pleco (L168) is peaceful (2/10) and Glowlight Tetra is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Butterfly Pleco (L168) and Glowlight Tetra need?
Both species overlap in the 5.5–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
How do I manage Butterfly Pleco (L168)'s territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Butterfly Pleco (L168) 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 Butterfly Pleco (L168) being nocturnal affect compatibility?
Butterfly Pleco (L168) 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 Butterfly Pleco (L168) during evening hours.
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