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spotted sharpnose

Scientific name Canthigaster solandri
Descriptor Richardson
Year of description 1845
IUCN category (World) LC
Family Tetraodontidae
Genus Canthigaster
Canthigaster solandri Canthigaster solandri
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Introduction

Canthigaster solandri, commonly known as spotted sharpnose, is a salt water fish.

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Who is it?

Morphology

  • Type
    pufferfish
  • Average size
    10 cm
  • Maximum size
    12 cm
  • Longevity
    8 year
  • Type
    pufferfish
  • Average size
    10 cm
  • Maximum size
    12 cm
  • Longevity
    8 year

How to recognize the spotted sharpnose ?

This species belongs to the group of pufferfish. These fish are nicknamed like this because they have the ability to inflate themselves when they feel threatened.

To achieve this inflation, they swallow water and fill their stomach to more than double their volume. This is made possible by their stretchy skin. This subterfuge makes them look much more impressive to their predators. They are also much more complicated to swallow. This change in shape becomes a disadvantage for these fish that, once inflated, can hardly move.

The spotted sharpnose measures between 10 and 12 cm. This fish is multicolore with a predominantly rouge, jaune and orange body.

Behaviour & Life cycle

  • diet
    omnivorous with alguivorous tendency
  • Sociability
    living as a couple or in a group
  • territorial
    Yes
  • Way of living
    diurnal

The spotted sharpnose is a fish living as a couple or in a group naturally found at mid-depth and near the bottom. This species is omnivorous with alguivorous tendency .

This species is territorial and does not appreciate the presence of intruders nearby, especially animals with similar behavior. It can also be virulent toward conspecifics. However, the spotted sharpnose has little concern for non-territorial animals.

Reproduction

  • Reproduction
    ovipare qui pond sur substrat découvert
  • Polygamy
    Yes

The spotted sharpnose is a fish ovipare qui pond sur substrat découvert. In this species, the dominant males are polygamous and reproduce each season with several females.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

Conservation status of populations (IUCN)

World : LC

Where to see this species?

Aquarium de La Réunion Aquarium-Muséum de Liège La Cité de la Mer

What is its habitat?

Natural environment characteristics

  • Temperature
    22 - 26 °C
  • Depth
    10 - 36 m
  • Flow
    Medium and Slow

Biotope presentation

The spotted sharpnose is most often found at a depth between 10m and 36m. However, it is not impossible to find this species at other depths.

Species of the same biotope

Main recommendations for fishkeeping

Deontology

In order to preserve wildlife, if you acquire this animal, it must not be released into the wild. See also, the Fishipedia charter.

Fishipedia supports the practice of responsible and environmentally friendly aquarium keeping. We encourage maintenance if it is motivated by a desire to understand the biological functioning of living things and if it is done with respect for animal life.

We believe that aquaristics is an opening to the discovery of aquatic environments, especially freshwater, and that this knowledge is necessary to better protect and respect these environments. Logically, we refute the compulsive purchase of animals that would not find a sufficient and / or adapted place in the host aquarium.

Our recommendations

  • Min volume
    200 liters
  • Population min
    1
  • Temperature
    22 - 26 °C
  • pH (acidity)
    8.2 - 8.4

Characteristics

  • Difficulty breeding
    hard
  • Robustness
    tolerant
  • Behaviour
    slightly aggressive
  • Availability
    occasional

General reminders

It is strongly advised to read the complete dedicated file and to get information on the feedbacks of maintenance of the envisaged animal, this to avoid any potential conflict whose end result is generally the death of the individual (or the other inhabitants). It is important not to overload your aquarium to limit pollution. This will make maintenance easier.

The realization of a seawater aquarium requires certain knowledge beforehand. Seawater is generally synthetic, consisting of reverse osmosis water and synthetic salt at a level of 33g / liters. It is also possible to take seawater directly (after making sure that the water is not polluted). The operation of a seawater aquarium is done in three phases: the installation of a living stone decoration, the introduction of invertebrates one month later, and the introduction of fish 3 months later. It is essential to wait as long as possible before to introduce the animals so that the micro-fauna has had time to develop well. The balance and the physico-chemical stability are fundamental for the success of this type of tank.

General reminder on maintenance datas

Le démarrage d'un aquarium est une partie primordiale pour l'équilibre et le bien-être des poissons. Lorsque l'on met en eau un aquarium, l'eau passe naturellement par un cycle biologique : le cycle de l'azote. Celui-ci dure environ trois semaines. Tous les 2 jours, nous vous conseillons de tester votre eau jusqu'à ce que le taux de nitrite soit à zéro pendant plusieurs jours d'affilée.

Pour accélérer ce cycle, vous pouvez utiliser un activateur de bactéries comme JBL Denitrol. Cette solution riche en bactéries vivantes et enzymes permet une mise en place rapide du cycle de l'azote. Les poissons peuvent alors être introduits plus rapidement.

Il est important de tester l'eau de son aquarium régulièrement pour maintenir un environnement sain pour les poissons et les autres habitants. Les tests d'eau permettent de mesurer les niveaux de différents paramètres tels que le pH, la dureté totale, ainsi que les taux de nitrates, de nitrites et d'ammoniaque.

Pour réaliser ces tests, vous pouvez utiliser des produits d'analyse spécialisés tels que JBL ProScan qui permet de réaliser un diagnostic de l'eau directement via un smartphone. Il existe également des coffrets de tests plus classiques de bandelettes, comme JBL PROAQUATEST.

En cas d’usage de l’eau du robinet, vous pouvez utiliser un conditionneur d’eau de type Biotopol de JBL pour éliminer les substances nocives comme le chlore, le cuivre, le plomb et le zinc. Les conditionneurs d'eau garantissent une meilleure santé aux poissons et une meilleure croissance des plantes.

Chlorine and chloramine are dangerous for the health of animals. Used to disinfect water, these agents are present in significant quantities in tap water. We recommend using an anti-chlorine agent every time you change the water. In addition to chlorine, treatments and medicines sold for aquarium use sometimes contain dangerous heavy metals in high doses.

Specific needs for the spotted sharpnose

The spotted sharpnose is a marine species which lives naturally at a temperature between 22 °C and 26 °C. For proper maintenance, the temperature should never exceed the 29°C for long periods. Nitrate levels should remain below 50mg/L. To keep the water clean and unpolluted, plan on changing 20% to 30% of the water volume each month. In seawater, it is also possible to remove nitrates using one of the following methods: Jaubert, denitrator on sulfur, biopeletts, vodka method.

The spotted sharpnose is a species whose maintenance is rather reserved for informed aquarists . It can only be successfully carried out by carrying out a minimum of documentation work. Special husbandry conditions can easily lead to the death of the species or other animals.

This species is generally available in specialized shops or from aquarium clubs. Specimens that have been bred for a long time are easier to breed, but special water parameters must be respected.

Cohabitation & Environment

In a community aquarium context, this species should be kept in a minimum volume of 200 liters.

The spotted sharpnose may show signs of aggression. In general, this species should not be mixed with large territorial species or other overly aggressive species, in order to avoid possible stress or even injury.

However, it can coexist with other species with a peaceful temperament and with some slightly territorial neighbors, as far as the volume of the aquarium allows. It is important to avoid that two territorial species share the same living area in an aquarium of insufficient volume.

This fish being polygamous, the male must always be maintained with several females. A ratio of three females to one male seems to be a good compromise for the constitution of the group.

To best reproduce the biotope of this species, you can cover the bottom of the tank with sand and put a pile of stones to form caves.

Tips for feeding

The spotted sharpnose is omnivorous with alguivorous tendency.

This species can eat dry food (flakes, pellets), fresh food and frozen food. To avoid deficiencies, it is recommended to vary the types of food.

You should not overfeed your residents to avoid polluting the water. For most species, it is better to feed a few small portions each day rather than one large meal.

Reproduction protocol

  • egg-laying protection
    Yes

Hybridization risks

In general, it is advised not to mix several species of the same genus or different varieties of the same species, to avoid the risks of hybridization.

These animals might interest you

To go further

Species of the same family

To read on the web

BioObs fishbase EOL

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Benoit Chartrer

Benoit Chartrer

Translation

Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Bibliographic references

First Record of the Sharpnose Puffer, Canthigaster solandri (Teleostei: Tetraodontiformes), from Japan - Keiichi Matsuura - Minoru Toda - Bull. Natn. Sci. Mus - 2005.

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Template and content © Fishipedia - Unauthorized reproduction without prior request - ISSN 2270-7247 - Last modification 13/11/2023

Where to see this species?

Aquarium de La Réunion Aquarium-Muséum de Liège La Cité de la Mer

Scientific partners

UICN France fishbase Worms BioObs

Tags

#Tetraodontidae

#Canthigaster

#barrière de corail

#lagon

#platier

#récifs extérieurs

#pufferfish

#Great Barrier Reef

#East China Sea

#Philippine Sea

#Indonesian seas

#Western Tropical Pacific Ocean

#Hawaii

#French Polynesia

Species of the same family

Same genus

Species of the same biotope

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