Can Clown Pleco (L104) and Royal Pleco (L190) Live Together?
Keeping Clown Pleco (L104) and Royal Pleco (L190) together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 540 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Behaviour & Temperament
Clown Pleco (L104) is a generally mild-mannered species (3/10), while Royal Pleco (L190) is moderately assertive (5/10). This modest difference means Royal Pleco (L190) may occasionally assert dominance over Clown Pleco (L104).
Clown Pleco (L104) and Royal Pleco (L190) 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.
Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.
Worth noting: Clown Pleco (L104) 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 Clown Pleco (L104) and Royal Pleco (L190) 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 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 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 5–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Clown Pleco (L104) and Royal Pleco (L190) together, plan for an aquarium of at least 540 litres with a minimum length of 150 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: 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.
Find the right tank equipment
Browse tanks, décor, and equipment suited for this setup.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Clown Pleco (L104) and Royal Pleco (L190).
Frequently Asked Questions
Can Clown Pleco (L104) and Royal Pleco (L190) live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 540 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Clown Pleco (L104) and Royal Pleco (L190) need?
A minimum of 540 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 Clown Pleco (L104) and Royal Pleco (L190) 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 Clown Pleco (L104) or Royal Pleco (L190) aggressive?
Clown Pleco (L104) is generally mild-mannered (3/10) and Royal Pleco (L190) is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Clown Pleco (L104) and Royal Pleco (L190) need?
Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
How do I manage Clown Pleco (L104)'s territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Clown Pleco (L104) 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 Clown Pleco (L104) being nocturnal affect compatibility?
Clown Pleco (L104) 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 Clown Pleco (L104) during evening hours.
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