Can Dusky Millions Fish and Skunk Botia Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Dusky Millions Fish and Skunk Botia are not recommended as tank mates due to no temperature overlap. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Dusky Millions Fish

Phalloceros caudimaculatus

Skunk Botia

Yasuhikotakia morleti

🐠Family Group
Dusky Millions Fish
Livebearers
Skunk Botia
Loaches
Temperament
Dusky Millions Fish
Peaceful (2/10)
Skunk Botia
Aggressive (7/10)
Temperature
✗ No overlap
Dusky Millions Fish
16–24°C
Skunk Botia
26–30°C
pH Range
✓ Compatible
Dusky Millions Fish
7–8
Skunk Botia
6–7.5
Hardness (dGH)
✓ Compatible
Dusky Millions Fish
8–20
Skunk Botia
2–12
Water Type
✓ Compatible
Dusky Millions Fish
Brackish Tolerant
Skunk Botia
Freshwater Only
Flow Preference
✓ Compatible
Dusky Millions Fish
Low
Skunk Botia
Moderate
Min Tank Volume
Combined: 150 L
Dusky Millions Fish
40 L
Skunk Botia
150 L
Swimming Level
✓ Different zones
Dusky Millions Fish
TopMiddle
Skunk Botia
Bottom
🏷️Behavior Tags
Dusky Millions Fish
Hyperactive / Fast SwimmerPlant DestroyerFin Nipper
Skunk Botia
Snail EaterShrimp EaterFin NipperGenerally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Hyperactive / Fast Swimmer
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Can your tank handle Dusky Millions Fish and Skunk Botia?

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.

Dusky Millions Fish
Skunk Botia
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Behaviour & Temperament

Dusky Millions Fish is a peaceful species (2/10), while Skunk Botia is semi-aggressive (7/10). This notable difference means Skunk Botia may occasionally assert dominance over Dusky Millions Fish.

In terms of spatial distribution, Dusky Millions Fish prefers the Top (Surface) and Middle (Open Water) zones, whereas Skunk Botia 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.

Water Parameters

There is no temperature overlap between Dusky Millions Fish (16–24°C) and Skunk Botia (26–30°C). This fundamental mismatch makes long-term cohabitation impractical.

Both fish can tolerate a pH between 7 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 8–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Dusky Millions Fish and Skunk Botia together, plan for an aquarium of at least 150 litres with a minimum length of 90 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: Plants - Densely covered, Plants - Floating, Established Algae (Otocinclus), Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

Dusky Millions Fish and Skunk Botia are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Dusky Millions Fish and Skunk Botia.

Show 9 more tank sizes

Frequently Asked Questions

Can Dusky Millions Fish and Skunk Botia live together?

No. This combination is not recommended. Key incompatibilities — such as non-overlapping temperature ranges — make cohabitation unsafe.

What size tank do Dusky Millions Fish and Skunk Botia need?

A minimum of 150 litres (tank length at least 90 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 Dusky Millions Fish and Skunk Botia together?

Unfortunately, there is no temperature range that satisfies both species. Dusky Millions Fish requires 16–24°C, while Skunk Botia needs 26–30°C.

Are Dusky Millions Fish or Skunk Botia aggressive?

Dusky Millions Fish is peaceful (2/10) and Skunk Botia is semi-aggressive (7/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Dusky Millions Fish and Skunk Botia need?

Both species overlap in the 7–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Dusky Millions Fish nip Skunk Botia's fins?

Dusky Millions Fish is a known fin nipper. If Skunk Botia has long or flowing fins, there is a real risk of fin damage. Keeping Dusky Millions Fish in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Skunk Botia's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Skunk Botia 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.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 11, 2026
Last updated
May 11, 2026
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