Can Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) Live Together?
Yes, Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) 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 1000 litres is recommended.
At a Glance
Can your tank handle Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin)?
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
Both Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) are generally mild-mannered species with an aggression score of 4/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.
In terms of spatial distribution, Cigar Shark (Mad Barb) prefers the Middle (Open Water) and Top (Surface) zones, whereas Common Pleco (Amazon Sailfin) occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.
Worth noting: Common Pleco (Amazon Sailfin) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Cigar Shark (Mad Barb) is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 23°C and 28°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.
Both fish can tolerate a pH between 6.5 and 8. 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.
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Tank Setup
To house Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) together, plan for an aquarium of at least 1000 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.
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: Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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.
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Frequently Asked Questions
Can Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) live together?
Yes. Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) need?
A minimum of 1000 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 Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) together?
Keep the aquarium between 23°C and 28°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.
Are Cigar Shark (Mad Barb) or Common Pleco (Amazon Sailfin) aggressive?
Cigar Shark (Mad Barb) is generally mild-mannered (4/10) and Common Pleco (Amazon Sailfin) is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Cigar Shark (Mad Barb) and Common Pleco (Amazon Sailfin) need?
Both species overlap in the 6.5–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
How do I manage Common Pleco (Amazon Sailfin)'s territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Common Pleco (Amazon Sailfin) 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 Common Pleco (Amazon Sailfin) being nocturnal affect compatibility?
Common Pleco (Amazon Sailfin) 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 (Amazon Sailfin) during evening hours.
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