Max Size: 3cm

Vietnamese Cardinal Minnow (Tanichthys micagemmae)

Vietnamese Cardinal Minnows are an ideal species for the smaller or nano aquarium. This fish is attractive, peaceful, hardy, and easy to breed, making them an excellent choice for beginners or advanced aquarists.

Due to their shoaling nature, these fish are best kept in groups of at least eight individuals; this will ensure they are less nervous and result in a more natural behaviour in the aquarium.

Keeping these fish in larger groups makes it more likely that you will obtain both sexes, enabling you to observe the exciting sparring events between rival males as they battle for the attention of the females. The males will display dramatic postures with all their fins spread wide; however, this is all for a show, and no actual harm will follow.

These fish are peaceful and should only be kept in a species only or community tank with other fish of similar size and temperament.

Vietnamese Cardinal Minnows are similar in appearance and are often confused with the more common White Cloud Mountain Minnow. The only difference being that Vietnamese Cardinal Minnows are smaller, have a lighter colouration on their lower body, and their lateral stripes are centred rather than above the middle. In addition, some older males develop spectacular elongated dorsal and anal fins. These fish also display red colouration on their noses, anal and caudal fins.

Vietnamese Cardinal Minnow (Tanichthys micagemmae) Video

Vietnamese Cardinal Minnow (Tanichthys micagemmae) Species Profile & Care Guide


Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Vietnamese Cardinal Minnow
Quick Facts
Scientific NameTanichthys micagemmae
Other NamesDwarf Vietnamese Minnow, Royal White Cloud, Vietnamese White Cloud, Sparkle-eye Minnow
Aquarium LevelMiddle - Top
Best kept asGroups 6+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH6.5 - 7.5
GH5 - 18
TDS36 - 143
65 - 75℉
18.3 - 23.9℃


In the home aquarium, the Vietnamese Cardinal Minnow 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.

Tank Mates

3 interesting tank mate ideas for the Vietnamese Cardinal Minnow could include:

Celestial Pearl Danio(Danio margaritatus)
Red Rili Shrimp(Neocaridina davidi var)
Saddleback Loach(Homaloptera Orthogoniata)

Sexual Dimorphism

Young Vietnamese Cardinal Minnows can be difficult to sex accurately; however, fully developed females are usually rounder-bellied and often a little larger than males. In contrast, males tend to intensify in colour and have tiny raised tubercles under the eye during the breeding season and become more vibrant in colour when spawning or if they are sparring with rivals. Males may also develop extended anal and dorsal fins once they mature.

Other Minnows of interest

Eurasian Minnow(Phoxinus phoxinus)
Rainbow Shiner(Notropis chrosomus)
Red Shiner(Cyprinella lutrensis)
White Cloud Mountain Minnow(Tanichthys Albonubes)
Date Added: 15/05/2021 15:16:57 - Updated: 19/01/2022 14:01:06