Small Scaled Tetra - Mimagoniates microlepis Fish Profile & Care Guide
Introduction
Small Scaled Tetras (Mimagoniates microlepis), a distinctive species within the Characidae family, is noteworthy for its unique adaptations and ecological role in its native habitats. This small freshwater fish, found in South America, exhibits a remarkable array of physical and behavioural traits that contribute to its survival and reproductive strategies. Characterized by its slender body and the micro-scaled texture that gives it its name, Mimagoniates microlepis plays a critical role in the biodiversity of its ecosystem. In the aquarium, they are known to be peaceful and active, often seen swimming in the middle and upper levels of the tank.
Small Scaled Tetras thrive when housed in groups, with at least six individuals, though ideally ten or more, as they are inherently shoaling creatures. In the presence of their conspecifics, these tetras display enhanced and visually striking behaviours, reflecting their natural social structure and promoting a healthier, more dynamic aquarium environment.
Creating a suitable community tank for these Tetras involves selecting compatible, peaceful tankmates that share similar environmental needs. Appropriate choices include Neon and Rummy-nose Tetras, Corydoras Catfish, and small Rasboras such as Harlequin and Chili, which are all non-aggressive and thrive under similar water conditions.
South American Dwarf Cichlids and small Plecos like the Bristlenose can also be good companions, provided they are not overly territorial. Invertebrates like cherry shrimp and nerite snails are excellent for adding diversity without increasing aggression. Ensuring that all tank inhabitants require the same water parameters and have sufficient space to exhibit their natural behaviours is crucial for maintaining a healthy and balanced aquarium.
Creating an optimal habitat for Small Scaled Tetras is not just a task, but a responsibility towards their health and well-being. These tetras thrive in a minimum tank size of 70 litres, ideally with a densely planted setup, dark substrate, twisted roots, and bogwood to mimic their natural environment. The layout should balance dense vegetation with open areas for swimming, and floating plants are beneficial for providing shade. Given their delicate nature, Small Scaled Tetras demand high-quality water and efficient filtration, which should be diligently maintained. We can ensure their well-being and contribute to their conservation by providing them with a suitable environment.
Visually, Small Scaled Tetras are characterized by a distinct brownish-black stripe extending from the head to the tail along either side of their body. Above this dark stripe, closely aligned, is a lighter brown-beige stripe. The fish's overall appearance is enhanced by a bluish-purplish sheen that covers its mostly transparent body, highlighting the two stripes and the internal organs. They typically grow to 6 cm (2.4 inches), making them a relatively small species in the aquarium hobby.
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Photos
Sexual Dimorphism
It is challenging to differentiate between male and female Small Scaled Tetras. Generally, males tend to be slightly slimmer and more vibrantly coloured compared to their female counterparts, particularly during the breeding season when their colours become more pronounced to attract mates. Females, on the other hand, are typically fuller-bodied or rounder, especially when gravid, indicating their readiness to spawn.
Quick Facts
| Scientific Name | Mimagoniates microlepis |
|---|---|
| Year Described | 1876 |
| Other Names | Blue Tetra, Blue Croaking Tetra |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Characiformes |
| Family | Characidae |
| Genus | Mimagoniates |
| Origins | Brazil |
| Approx Max Size | 6 cm |
| Temperament | Peaceful |
| Aquarium Level | Middle - Top |
| Difficulty | Beginner - Intermediate |
| Shoaling | Yes |
| Best kept as | Groups 6+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg-Scatterer |
| Average Lifespan | Up to 5 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 6.0 - 7.0 |
| GH | 2 - 20 |
| ℉ | 64 - 73 |
|---|---|
| ℃ | 18 - 23 |
Natural Habitat
The Small Scaled Tetra is native to eastern Brazil, with its range extending from southern Bahia to northern Rio Grande do Sul. This species is also present in certain high-altitude regions of the Iguaçu River. Predominantly found in clear, cool, fast-flowing coastal rivers and streams, these fish are characteristic of their specific freshwater habitats within South America. They are adapted to live in various water conditions, including high-altitude rivers and lowland streams, showcasing their resilience and adaptability.
Breeding
Breeding Small Scaled Tetras is a delicate process that requires meticulous attention to detail. Successful reproduction in captivity necessitates the simulation of their natural habitat. This involves maintaining slightly acidic to neutral water pH, soft water hardness, and lower temperatures within the range of 18-22°C. A breeding tank should have fine-leaved plants and dim lighting to mimic their natural breeding grounds and encourage spawning behaviour. The tank should also provide plenty of hiding spots to reduce stress. Mimagoniates microlepis are egg scatterers, laying their eggs among plants and substrate. After spawning, it is crucial to remove adult fish to prevent egg predation. Careful monitoring of water quality and temperature is essential during the incubation period to ensure the health and development of the fry. By following these prudent steps, we can contribute to conserving this unique species.
Diet & Feeding
Small Scaled Tetras exhibit omnivorous feeding habits, consuming a varied diet that enhances their health and vitality in natural and captive environments. In the wild, their diet primarily consists of small insects, larvae, and plant matter, reflecting their adaptability to the available resources in their native stream habitats. For captive care, it is beneficial to replicate this natural diet to ensure nutritional balance and promote natural behaviours. A diet for these Tetras in aquarium settings should include high-quality flake food, frozen or live foods such as brine shrimp, daphnia, bloodworms, and vegetable supplements. This diverse feeding regimen meets their nutritional needs and encourages active foraging behaviour, contributing to overall health and longevity. Regular feeding, careful food intake, and water quality monitoring ensure a thriving environment for these fish.
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Published: 29 May 2024
Last Updated: 29 May 2024