Can Violet Goby (Dragon Goby) and Zebra Pleco (L046) Live Together?

🔴Not Recommended

Violet Goby (Dragon Goby) and Zebra Pleco (L046) are not recommended as tank mates due to incompatible water types. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Violet Goby (Dragon Goby)

Gobioides broussonnetii

Zebra Pleco (L046)

Hypancistrus zebra

🐠Family Group
Violet Goby (Dragon Goby)
Gobies & Gudgeons
Zebra Pleco (L046)
Catfish
Temperament
Violet Goby (Dragon Goby)
Peaceful (2/10)
Zebra Pleco (L046)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Violet Goby (Dragon Goby)
23–28°C
Zebra Pleco (L046)
27–31°C
pH Range
✓ Compatible
Violet Goby (Dragon Goby)
7.5–8.5
Zebra Pleco (L046)
6–7.5
Hardness (dGH)
✓ Compatible
Violet Goby (Dragon Goby)
12–25
Zebra Pleco (L046)
2–12
Water Type
✗ No overlap
Violet Goby (Dragon Goby)
Brackish Required
Zebra Pleco (L046)
Freshwater Only
Flow Preference
✓ Compatible
Violet Goby (Dragon Goby)
Moderate
Zebra Pleco (L046)
High
Min Tank Volume
Combined: 240 L
Violet Goby (Dragon Goby)
200 L
Zebra Pleco (L046)
75 L
Swimming Level
Shared: 1 zone
Violet Goby (Dragon Goby)
Bottom
Zebra Pleco (L046)
Bottom
🏷️Behavior Tags
Violet Goby (Dragon Goby)
NocturnalDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)
Zebra Pleco (L046)
Shy / Slow Moving (Easily Stressed)NocturnalTerritorial (Defends specific area)

Behaviour & Temperament

Violet Goby (Dragon Goby) is a peaceful species (2/10), while Zebra Pleco (L046) is generally mild-mannered (3/10). This modest difference means Zebra Pleco (L046) may occasionally assert dominance over Violet Goby (Dragon Goby).

Violet Goby (Dragon Goby) and Zebra Pleco (L046) 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.

Worth noting: Violet Goby (Dragon Goby) 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 27°C and 28°C. Aim for the midpoint of this range (around 27.5°C) for optimal comfort.

Both fish can tolerate a pH between 7.5 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 12–12 dGH. Regular testing will ensure conditions stay within this range.

Crucially, these species require different water types — one needs freshwater while the other requires brackish conditions. This is a hard barrier to keeping them together. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Violet Goby (Dragon Goby) and Zebra Pleco (L046) together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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), Shells (Breeding/Hiding), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels). 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.

Frequently Asked Questions

Can Violet Goby (Dragon Goby) and Zebra Pleco (L046) live together?

No. This combination is not recommended. Key incompatibilities — such as different water type needs — make cohabitation unsafe.

What size tank do Violet Goby (Dragon Goby) and Zebra Pleco (L046) need?

A minimum of 240 litres (tank length at least 120 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 Violet Goby (Dragon Goby) and Zebra Pleco (L046) together?

Keep the aquarium between 27°C and 28°C. A target of around 27.5°C sits comfortably within both species' preferred ranges.

Are Violet Goby (Dragon Goby) or Zebra Pleco (L046) aggressive?

Violet Goby (Dragon Goby) is peaceful (2/10) and Zebra Pleco (L046) is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Violet Goby (Dragon Goby) and Zebra Pleco (L046) need?

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

How do I manage Zebra Pleco (L046)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Zebra Pleco (L046) 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 Violet Goby (Dragon Goby) being nocturnal affect compatibility?

Violet Goby (Dragon Goby) 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 Violet Goby (Dragon Goby) during evening hours.


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