Spike Tailed Paradise Fish Care Guide
Pseudosphromenus dayi · Freshwater Fish
What Spike Tailed Paradise Fish look like
The Spike Tailed Paradise Fish, or Pseudosphromenus dayi, exhibits a robust, laterally compressed body that typically reaches a maximum adult size of 5-15 cm. Its coloration ranges from reddish-brown to blue, often adorned with distinctive banding patterns that enhance its visual appeal. Notably, this species possesses a unique pointed, spike-like caudal fin, which serves as a defining characteristic. The fish features a well-developed labyrinth organ, allowing it to breathe atmospheric oxygen, a trait common among its family. Additionally, the presence of a dorsal fin that extends along much of the back and an adipose fin contributes to its streamlined appearance, while its dentition is adapted for an omnivorous diet, featuring small, conical teeth suitable for grasping both plant material and small invertebrates.
Behavior & temperament
Pseudosphromenus dayi is primarily a solitary species but can exhibit social behavior when kept in groups, particularly during breeding. It typically occupies the mid to upper water column, favoring densely vegetated areas where it can find cover and forage. The breeding behavior is characterized by egg scattering, with females laying eggs among aquatic plants, which the males then guard. This species is generally peaceful but can display territorial aggression during the breeding season, particularly towards conspecifics or other species that encroach on their nesting area.
Diet & feeding
In the wild, the Spike Tailed Paradise Fish is an omnivore, feeding on a varied diet that includes small invertebrates, detritus, and plant matter. In captivity, it thrives on a balanced diet of high-quality flake food, frozen or live foods such as brine shrimp and daphnia, along with blanched vegetables to ensure adequate nutrition.
Behind the name
Pseudosphromenus (false sphromenus); dayi (named in honor of a person, likely a naturalist or researcher).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Spike Tailed Paradise Fish?
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