Max Size: 6cm

Glass Bloodfin Tetra (Prionobrama filigera)

Glass Bloodfin Tetras are a peaceful and relatively active shoaling species that you can keep with many other fish species that enjoy similar water conditions making them an excellent choice for the community aquarium. Their comparative hardiness makes them ideal for the beginner aquarist. Rival males can sometimes squabble amongst themselves, and this is one of several good reasons you should always keep them in groups of at least six to eight individuals.

Ideal tankmates for these Tetras are other similarly-sized Characins, smaller Loricariid Catfish, Apistogramma, Corydoras, Mikrogeophagus and in a suitably-sized aquarium, even slightly larger Cichlids such as Discus or Angelfish. It is recommended that you avoid bigger, more boisterous species that inhabit similar tank areas as they tend to stress out and become withdrawn if they are outcompeted for swimming space and food.

Glass Bloodfin Tetras are not the most colourful of the Tetras; however, they're still quite a stunning species. They have an elongated slender body that is entirely transparent where you can see the stomach, brain and bones of the fish, except for the tail, which is a scarlet colour. Sometimes when these fish swim around and catch the light, they display a bluish iridescence.


Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetras
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Glass Bloodfin Tetra
Quick Facts
Scientific NamePrionobrama filigera
Other NamesNone
OriginsBolivia, Brazil, Colombia, Ecuador
Aquarium LevelMiddle - Top
Best kept asGroups 6+
Lifespan5 - 7 years
Water Parameters
Water TypeFreshwater
PH6.0 - 7.5
GH5 - 20
73 - 81℉
22.8 - 27.2℃


In the home aquarium, the Glass Bloodfin Tetra 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 Glass Bloodfin Tetras. Males are usually slimmer than females and have a hook shape at the beginning of their anal fin. They also present a dark stripe on the anal fin when they are in good condition and have slightly longer anal and dorsal fins. In contrast, females are noticeably fuller-bodied than males, especially when in breeding condition.

Other Tetras of interest

Adonis Tetra(Lepidarchus adonis)
African Moon Tetra(Bathyaethiops caudomaculatus)
African Red Eyed Tetra(Arnoldichthys spilopterus)
Arowana Tetra(Gnathocharax steindachneri)
Black Darter Tetra(Poecilocharax weitzmani)
Black Line Tetra(Hyphessobrycon scholzei)
View all Tetras
Date Added: 17/06/2021 13:08:07 - Updated: 22/11/2021 17:36:48