Cory Profile Discrepancies
The Bronze Cory profile says...
This very species is nicknamed "helmet skin" amongst hobbyists and they really live up to it, being amongst the 'hardier' one's of the Cory family.
Read more: Bronze Cory (Corydoras aeneus) Profile
The Pepper Cory profile says....
The genus name is derived from the Greek "cory" meaning helmet, and "doras" meaning skin, incorrectly used here for "armour"; it refers to the dual row of overlapping plates (instead of scales) along the body, comparable to a suit of armour. This species name is from the Latin palea which means a chaff (strips of metal foil), more evident in wild fish whose flanks shimmer in the sunlight.
Read more: Pepper Cory (Corydoras paleatus) Profile
From what the pepper cory profile says the name "Corydoras" or helmet skin comes from the appearance of the cories, where as the bronze cory implies the name is specific to them and refers to them being hardier fish.
This confused me a bit seeing some profiles refer to all cories being durable and others saying Corys were sensitive in general.
The genus corydoras means helmet skin. Just like the homo in homo sapiens means wise.
The Bronze cory is nicknamed helmet skin by hobbyists because it is hardy. It just so happens that corydoras also means helmet skin.
Some cories like the bronze cory, and the peppered cory are durable. Others are sensitive, it depends on the species
sensitivity refers usually how they handle various water qualities. Cories fall in with the armored catfish I believe. They are armored and it has no baring to how sensitive they are. Different species of plecos vary in their sensitivity even though all are armored cats. If you ever handle a cory they are very hard and if I recall the first fin ray on the dorsal and pectoral fins is actually a spine, similar to plecos. They underside or belly or armored cats is they only really soft area on the fish. A lot of these physical traits are for defense against being eaten. They don't make they fish any less susceptible to changes in water parameters or other chemicals.
I didn't author the Corydoras aeneus profile so I shouldn't second-guess Natalie, but I suspect the "hardiness" refers to the species' remarkable tolerance for differing water parameters. Unlike the majority of cory species that are endemic to a stream or river, C. aeneus is widespread over much of the northeastern portion of the South American continent, east of the Andes from the La Plata basin in northern Argentina up through much of Brazil, Paraguay, Bolivia, Peru, Columbia, Venezuela, the Guyanas and even on the islands of Trinidad and tobago. Much of these waters are acidic or slightly acidic and soft, but some are slightly basic and even medium hard. And the many decades of tank raising this species has made it adaptable to almost all freshwater conditions.
They are still individually as susceptible to changes and conditions as Mikaila said. Stable water at whatever parameter is still necessary for good health.
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