Can Cherry Spot Rasbora and Emerald Dwarf Danio Live Together?
Keeping Cherry Spot Rasbora and Emerald Dwarf Danio together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 45 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Cherry Spot Rasbora and Emerald Dwarf Danio?
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.
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Behaviour & Temperament
Both Cherry Spot Rasbora and Emerald Dwarf Danio are peaceful species with an aggression score of 1/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.
Cherry Spot Rasbora and Emerald Dwarf Danio 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: Emerald Dwarf Danio 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 23°C and 24°C. Aim for the midpoint of this range (around 23.5°C) for optimal comfort.
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.
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Tank Setup
To house Cherry Spot Rasbora and Emerald Dwarf Danio together, plan for an aquarium of at least 45 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 - Densely covered, Plants - Floating. 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.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Cherry Spot Rasbora and Emerald Dwarf Danio.
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
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Frequently Asked Questions
Can Cherry Spot Rasbora and Emerald Dwarf Danio live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 45 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Cherry Spot Rasbora and Emerald Dwarf Danio need?
A minimum of 45 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 Cherry Spot Rasbora and Emerald Dwarf Danio together?
Keep the aquarium between 23°C and 24°C. A target of around 23.5°C sits comfortably within both species' preferred ranges.
Are Cherry Spot Rasbora or Emerald Dwarf Danio aggressive?
Cherry Spot Rasbora is peaceful (1/10) and Emerald Dwarf Danio is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Cherry Spot Rasbora and Emerald Dwarf Danio 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.
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