Corydoras adolfoi vs Corydoras duplicareus

[redtigrinus]

Does any one know how to tell the difference between Corydoras adolfoi and Corydoras duplicareus?

[Vess]

Hi there

I believe that the black stripe on

Corydoras adolfoi

tapers off as it approaches the tail, thins out if you like. I was also told that the colours on

Corydoras duplicareus

fade as they get older.

However I am sure someone can give you better info

L

[The.Dark.One]

The only definite way is the serrations on the inner edge of the pectoral fin spines and in live fish that is impossible to compare.

[Dave Rinaldo]

From the Cat=eLog, Identification for both

Corydoras duplicareus

and

Corydoras adolfoi

According to the description C. duplicareus has serrations on the posterior edge of the pectoral fin spine, whereas C. adolfoi does not. This of course is not easy to see in a normal aquarium. The best way to see if your fish have these serrations would be to place them into a shallow, preferably white, container and shine a light up from underneath. Then with the aid of a magnifying glass you should be able to see if there are any serrations or not. As a general rule C. duplicareus tends to be a little stockier than C. adolfoi and the black band is usually a little broader.

.

[Karsten S.]

Hi,

if you buy aqurium bred corys there is a much higher chance that they are C. duplicareus. The upbringing of C. adolfoi requires much more effort whereas with C. duplicareus it's rather easy. Here in Germany I assume that more than 90% of non WC of those two corys are C. duplicareus (acc. to the general looks).
As stated already they have usually a broader dark band and also the orange shoulder spot is often more pronounced, but you cannot use this characters on single specimen and even with large groups you can never be sure without looking at the spines...

Cheers,

[donpetty]

I noted that someone last week was selling 4 C. "adolfoi" on Aquabid. The bids went pretty high. I have C. duplicareus, and when I have seen live adolfoi, the bar on the back seems very narrow in comparison and the black mask does not blend towards the dorsal and into the orange blotch on the head. Maybe this is not always the case; but, I error on the side of caution and can only compare based on books and the visual observations I've made when I have seen live specimens of both fish in the lfs. I passed on the aquabid offering because I was more inclined to think that they are actually duplicareus; which seem at least where I live much more common and do not sell for prices nearly as high as these "adolfoi" went for.
Don