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Corydoras similis, Hierronimus, 1991

Origin:South-America, Brazil, Rondonia, Rio Madeira's tributaries.

Etymology: Similis(looks like), named after it's similarity to C. ourastigma.

Synonyms:None.

First import:Unclear, the fish were first imported under the false name C.Caudimaculatus.

Description:Bodycolor yellowish beige, small brown spots all over the body, fins transparent, large blue spot.

Care:A 60 cm tank with good filtration, although no strong current is neccessary for the animals well-being. Dark soil with little light is highly appreciated, as well as soft acidic water. Some floating plants and driftwood . Wildcaught specimens need lots of hideouts to reduce stress.

Temperature: 20-26

Feeding:As described above wildcaught specimens are very shy and easily scared fish. If you decide to keep them in a community tank make sure they get enough to eat.

Size: Males 3.5 cm, females 4.5 cm

pH: 6.0-6.5 Hardness: 2-10

Breeding:A 60 cm tank for a school of 8 of these fish, peat filtered soft brownish water(pH may go down to five), little light, temperature 24-25 degrees. Lots of live food(artemia, daphnia, mosquitolarvae) for one or two weeks. Do a 20-30% waterchange with water pH 1 unit higher, and 2-3 degrees colder. Do this every other day for a period, until they start to breed. Hierronimus describes the fish as being very easy to keep and breed, but until I started keeping them in more acidic conditions I couldn't get them to breed. His picture of C. similis in his book Corydoras Panzerwelse also seems to have a less rounded snout than the fish shown here

Sexual dimorphism:Males are shorter and smaller than the females.

Prices:Netherlands 5 Euro for normal fish. Occasionally juveniles are for sale for 3 Euro.

Additional:In this group from similis, guapore, caudimaculatus and ourastigma this fish is most often seen in shops.

Picture references:Picture 1: E. Naus

References:Lambourne, D. ((1995): Corydoras catfish, An Aquarist's Handbook. Blandford, London, UK.Hierronimus, H. (1997): Ihr Hobby: Corydoras Pantzerwelse. Bede Verlag, Ruhmannsfelden, Germany.

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