Max Size: 7.5cm

Spike Tailed Paradise Fish (Pseudosphromenus dayi)

Brown Spike-tailed Paradise Fish are small, hardy, peaceful and timid fish that are pretty hard to get a hold of. However, they are not really suitable for the general community aquarium due to their small size and shy nature. However, you can maintain these fish in pairs or a group of 6or more individuals, providing you have more females than males. If you choose to keep this species in a group, you will notice some exciting behaviours.

Ideally, it would be best to keep these fish in a species only aquarium or an aquarium with other similarly sized species that share the same temperament. Ideal tank mates for these fish could include non-aggressive Cyprinids, Tetras, smaller Loaches and Corydoras Catfish. It would be best to avoid much larger boisterous species or species that are very similar in shape.

You can keep the Brown Spike-tailed Paradise Fish in a fully-decorated aquarium; however, many breeders prefer not to use a substrate as the aquarium is easier to maintain. Instead, it would be beneficial to add driftwood roots and branches to the aquarium to provide a few shady areas for your fish. You should also add a few cave-like areas using flower pots or coconut shells, so these fish have somewhere to lay their eggs.

The addition of dried leaf litter further accentuates the natural feel offering additional cover as well as giving microbe colonies a place to develop, providing a valuable food source for babies. These fish prefer reasonably dim lighting, so adding floating plants can also be helpful.

It would be best to have gentle filtration in the aquarium as these fish naturally inhabit still to slow-moving waters; therefore, a small air-powered sponge filter will be just fine. You should also perform regular water changes.

The Brown Spike-tailed Paradise Fish has an elongated brownish body that displays two dark, irregular stripes along the sides of the fish when stressed. The anal, dorsal and caudal fins are brownish-red with an iridescent light blue edge. In addition, the ventral fins are red with iridescent blue tips.


Spike Tailed Paradise Fish Sparring
Spike Tailed Paradise Fish
Quick Facts
Scientific NamePseudosphromenus dayi
Year Described1908
Other NamesSpike-Tailed Gourami
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asPairs
ReproductionBubble nest
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH6.0 - 7.5
GH5 - 15
TDS36 - 268
75 - 82℉
23.9 - 27.8℃


In the home aquarium, the Spike Tailed Paradise Fish will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

It is relatively simple to differentiate between male and female Brown Spike-tailed Paradise Fish. Males are more colourful and larger than females, they have orange colouration around their throat area, and their anal, dorsal and caudal fins are extended. In contrast, females are typically duller and smaller, and their fins are shorter.

Other Gouramis of interest

Banded Gourami(Trichogaster fasciata)
Chocolate Gourami(Sphaerichthys osphromenoides)
Congo Ctenopoma(Ctenopoma congicum)
Dwarf Ctenopoma(Microctenopoma nanum)
Dwarf Gourami(Trichogaster lalius)
Frail Gourami(Ctenops nobilis)
View all Gouramis
Date Added: 07/04/2022 16:28:28 - Updated: 07/04/2022 16:41:22