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Mystus bleekeri

Day's Mystus

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Quick facts

Length
155mm SL6in SL
Tank base
120 × 30cm48 × 12in
Temp
18–26°C64–79°F
pH
5.8–8.0
Hardness
3–30dGH

Difficulty4 of 6 measures

Easy

More bars, more demanding.

Space
large tank
Water
tap water
Temp
unfussy
Temperament
peaceful
Social
unknown
Compatibility
unknown

This species superficially resembles the more common (in the hobby) M. vittatus, but can be distinguished by its larger adult size and much longer adipose fin. It is an ideal peaceful catfish for larger communities and as with many other bagrids, is in our opinion somewhat underrated in the hobby....

Distribution

Habitat

It inhabits lakes, rivers and other waterways.

Aquarium size

Standard length
155mm SL6in SL
Aquarium base
120 × 30cm48 × 12in
Volume
~108litres~29US gal

120 ∗ 30 ∗ 30 cm48 ∗ 12 ∗ 12 in - ~108 litres~29 US gal.

Maintenance

The decor used is not critical but the fish must be provided with some hiding places. You will see it more often if the surface is covered in floating plants to cut down the light reaching the substrate. Water chemistry is relatively unimportant as it can tolerate a wide range of conditions.

Water conditions

Temperature
18–26°C64–79°F
pH
5.8–8.0
Hardness
3–30dGH

Temperature: 18 – 26 °C64 – 79 °F. It will probably be happier towards the upper end of this range.

pH: 5.8-8.0. We suggest you aim for a value around 7.0.

Hardness: 3-30°H

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Diet

M. bleekeri is an unfussy feeder, and will accept most live, frozen and dried foods. Feed a varied diet to keep the fish in good health and displaying their best colours.

Behaviour and compatibility

A peaceful and gregarious species but it will probably eat small fish when adult. It makes a good bottom dweller for communities of larger peaceful fish. Maintain it in a small group as it is more outgoing when in the company of conspecifics.

Sexual dimorphism

Males possess a small genital papilla located just in front of the anal fin. This resembles a single fin ray.

Reproduction

Not thought to have been achieved in aquaria.

Notes

This species superficially resembles the more common (in the hobby) M. vittatus, but can be distinguished by its larger adult size and much longer adipose fin. It is an ideal peaceful catfish for larger communities and as with many other bagrids, is in our opinion somewhat underrated in the hobby.

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Missing: a photograph, photograph credits, references, a recorded distribution, taxonomic authority, social needs, community suitability, etymology.