Can Tire Track Eel and Violet Goby (Dragon Goby) Live Together?

🔴Not Recommended

Tire Track Eel and Violet Goby (Dragon Goby) 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

Tire Track Eel

Mastacembelus armatus

Violet Goby (Dragon Goby)

Gobioides broussonnetii

🐠Family Group
Tire Track Eel
Oddballs
Violet Goby (Dragon Goby)
Gobies & Gudgeons
Temperament
Tire Track Eel
Semi-Aggressive (6/10)
Violet Goby (Dragon Goby)
Peaceful (2/10)
Temperature
✓ Compatible
Tire Track Eel
22–28°C
Violet Goby (Dragon Goby)
23–28°C
pH Range
✓ Compatible
Tire Track Eel
6.5–7.5
Violet Goby (Dragon Goby)
7.5–8.5
Hardness (dGH)
✓ Compatible
Tire Track Eel
5–15
Violet Goby (Dragon Goby)
12–25
Water Type
✗ No overlap
Tire Track Eel
Freshwater Only
Violet Goby (Dragon Goby)
Brackish Required
Flow Preference
✓ Compatible
Tire Track Eel
Moderate
Violet Goby (Dragon Goby)
Moderate
Min Tank Volume
Combined: 816 L
Tire Track Eel
680 L
Violet Goby (Dragon Goby)
200 L
Swimming Level
Shared: 1 zone
Tire Track Eel
Bottom
Violet Goby (Dragon Goby)
Bottom
🏷️Behavior Tags
Tire Track Eel
Piscivore (Eats small/nano fish)Shrimp EaterDigger (Disturbs Substrate)Jumper (Lid Required)NocturnalAggressive to same species/look-alikes
Violet Goby (Dragon Goby)
NocturnalDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)

Behaviour & Temperament

Tire Track Eel is a moderately assertive species (6/10), while Violet Goby (Dragon Goby) is peaceful (2/10). This notable difference means Tire Track Eel may occasionally assert dominance over Violet Goby (Dragon Goby).

Tire Track Eel and Violet Goby (Dragon Goby) 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: Tire Track Eel is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Tire Track Eel 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 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 12–15 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 Tire Track Eel and Violet Goby (Dragon Goby) together, plan for an aquarium of at least 816 litres with a minimum length of 180 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Shells (Breeding/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.

Frequently Asked Questions

Can Tire Track Eel and Violet Goby (Dragon Goby) live together?

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

What size tank do Tire Track Eel and Violet Goby (Dragon Goby) need?

A minimum of 816 litres (tank length at least 180 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 Tire Track Eel and Violet Goby (Dragon Goby) 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 Tire Track Eel or Violet Goby (Dragon Goby) aggressive?

Tire Track Eel is moderately assertive (6/10) and Violet Goby (Dragon Goby) is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Tire Track Eel and Violet Goby (Dragon Goby) 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.

Does Tire Track Eel being nocturnal affect compatibility?

Tire Track Eel 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 Tire Track Eel during evening hours.


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