

Red-Eye Spiketail Paradisefish is Pseudosphromenus cupanus, a small bubble-nesting labyrinth fish for calm planted aquariums.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Pseudosphromenus cupanus
Red-Eye Spiketail Paradisefish bond and breed in male/female pairs. Buying a pair gives them the social structure they need — and you get a better price per fish.
Red-Eye Spiketail Paradisefish is Pseudosphromenus cupanus, a small bubble-nesting labyrinth fish for calm planted aquariums.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Maintain these water conditions for optimal health and vibrant colors
Red-Eye Spiketail Paradisefish is a small air-breathing labyrinth fish from slow, vegetated waters. It does best in calm planted aquariums with floating cover, gentle filtration and tank mates that are peaceful rather than boisterous.
Feed small quality pellets with frozen or live foods such as daphnia, brine shrimp, mosquito larvae and other small invertebrate foods. Males may guard bubble nests, so provide cover and avoid cramped mixes with other territorial labyrinth fish.
This is living livestock. We dispatch suitable orders with a licensed live-animal courier when conditions are safe, and the Live Arrival Guarantee applies when the arrival guidance is followed.


16–26°C · pH 6–8 · 80L

18–26°C · pH 6–8 · 80L

20–25°C · pH 6.5–7.5 · 30L

24–28°C · pH 6–7.5 · 40L

24–28°C · pH 6–7.5 · 40L

18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 500L

20–27°C · pH 6–7 · 54L

23–27°C · pH 7.4–8.4 · 150L

24–28°C · pH 6.5–7.8 · 300L

20–24°C · pH 7–8 · 45L

24–28°C · pH 6.5–7.5 · 2000L

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

24–27°C · pH 7.5–8.8 · 150L

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 7.5–8.5 · 40L

24–28°C · pH 7.5–8.5 · 500L