Can Australian Smelt and Cherry Shrimp Live Together?

Possible with Caution

Keeping Australian Smelt and Cherry Shrimp together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 75 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Australian Smelt

Retropinna semoni

Cherry Shrimp

Neocaridina davidi

🐠Family Group
Australian Smelt
Other
Cherry Shrimp
Invertebrates
Temperament
Australian Smelt
Peaceful (1/10)
Cherry Shrimp
Peaceful (0/10)
Temperature
✓ Compatible
Australian Smelt
15–24°C
Cherry Shrimp
18–28°C
pH Range
✓ Compatible
Australian Smelt
6.5–8
Cherry Shrimp
6.5–8
Hardness (dGH)
✓ Compatible
Australian Smelt
5–20
Cherry Shrimp
6–15
Water Type
✓ Compatible
Australian Smelt
Brackish Tolerant
Cherry Shrimp
Freshwater Only
Flow Preference
✓ Compatible
Australian Smelt
Moderate
Cherry Shrimp
Low
Min Tank Volume
Combined: 75 L
Australian Smelt
75 L
Cherry Shrimp
19 L
Swimming Level
Shared: 1 zone
Australian Smelt
TopMiddle
Cherry Shrimp
BottomMiddle
🏷️Behavior Tags
Australian Smelt
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Fry PredatorJumper (Lid Required)
Cherry Shrimp
Nano / Bite-sized (Predation Risk)Hyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Australian Smelt and Cherry Shrimp?

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.

Australian Smelt
Cherry Shrimp
Test both in my tank

Behaviour & Temperament

Australian Smelt is a peaceful species (1/10), while Cherry Shrimp is peaceful (0/10). This modest difference means Australian Smelt may occasionally assert dominance over Cherry Shrimp.

Australian Smelt and Cherry Shrimp both frequent the Middle (Open Water) 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

Worth noting: Australian Smelt is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.

Water Parameters

The safe temperature window for both species falls between 18°C and 24°C. Aim for the midpoint of this range (around 21.0°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 6–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Australian Smelt and Cherry Shrimp together, plan for an aquarium of at least 75 litres with a minimum length of 60 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

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: Plants - lighly covered, Smooth Gravel (Sensitive Barbels), Established Algae (Otocinclus), Plants - Densely covered, Leaf Litter/Blackwater. 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.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Australian Smelt and Cherry Shrimp.

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Frequently Asked Questions

Can Australian Smelt and Cherry Shrimp live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 75 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Australian Smelt and Cherry Shrimp need?

A minimum of 75 litres (tank length at least 60 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 Australian Smelt and Cherry Shrimp together?

Keep the aquarium between 18°C and 24°C. A target of around 21.0°C sits comfortably within both species' preferred ranges.

Are Australian Smelt or Cherry Shrimp aggressive?

Australian Smelt is peaceful (1/10) and Cherry Shrimp is peaceful (0/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Australian Smelt and Cherry Shrimp 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.


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