Hi, Just wanted to let you all know what finally took care of the disease, just in case someone else picks up some fish with this problem. After the unsuccessful Pimafix and Melafix treatments, I tried a week of Maracyn 2. This was also ineffective. I then tried 2 weeks of daily 25% water changes ...

In general, I like Shane's definitions regarding various types of filtration. They are straight-forward, and easy to understand. There are, however, a couple points, that may need to be clarified. Under biological filtration, it says "The end product of biological filtration, nitrate, can only be ...

Jools, I'm a rank novice/amateur when it comes to catfish, having only paid them much attention (only corys so far) for a little over a year now. But I have been trying to make myself a key for the genus Corydoras. I know, I am probably in way over my head! but I've been having fun working on it--it ...

C141 is a long-snouted species.

My guess would be a C. schwartzi--they do not always have black extending into the dorsal fin. Or the one shown in Ian Fuller's (Coryman) book, on identifying corys, as Corydoras cf. schwartz, on p. 229.

Ian, Thanks for the I.D. Would you tell me on what basis you say C131 rather than C. leopardus, or one of the others of that group? I'd like to get some more, but need to know what to characteristics to look for. As far a high protein, I've been feeding them blackworms every couple of days. Would ...

Mike, Are you saying that I can KEEP (not breed) most South American fish (neutral to acid pH, soft water) just fine in my hard, alkaline (pH 8.4-8.6, dKH 18, dGH 20) just fine as long as these parameters are stable? I have shied away from most of them (sticking primarily to livebearers and Rift ...

I would like some help in IDing these "misc. catfish" I recently purchased. They are currently about 2.5 inches SL. I do not know anything about location of collection. I would guess that they are one of the "leopardus" group of catfish, but which? http://img125.imageshack.us/img125/870 ...

How did you determine they weren't leopardus? When I look at the pictures on this site and in Ian's book, some of them are marked the same to me--like the first thumbnail of both species her on PC.

Cheri

I haven't been able to access the new site since Wednesday. Is it just some of us that can't get it?

Cheri

I think "adipose fin" should be designated as rayless , to distinguish it from a second dorsal fin, which has rays. Also there is a typo in the 3rd sentence So may be: Adipose fin: Adipose means fatty, it refers to the rayless fin that is between the dorsal fin and the caudal fin on many catfishes ...

Here's one that needs defined for the glossary.

What, exactly, is "rostrum" as it relates to catfish? I don't think of catfish as having a beak or a beak-like projection--which is the common scientific definition.

Cheri

I would question the Notes on I.D. if it is saying the the line doesn't split on C. melini . This may be a way to distinguish davidsandis from C. metae and some others, but on C. melini the line splits. I am no expert, so I do not know if this holds true all the time, but the difference may be that ...

I like MatsP's and Jools' way of handling those definitions for shoal and school.

The use of Finding Nemo for an example is great, at least for the next few years!

Cheri

MatsP, Sorry, I wasn't trying to be critical of what you've done. I really appreciate the time you are putting in to provide definitions for the glossary. The distinctions in "definitions" for schooling and shoaling I gave were the one's that I had been led to understand from various things I had ...

I have been under the impression that "school" and "shoal" are not the same. That a " school " is a highly-ordered group of fish with members going the same direction and maintaining a fixed distance between neighboring fish in the group (similar to MatsP's definition). Whereas a " shoal " is a ...

Each fry should be either albino or bronze. Whether or not you get any albino fry or not would depend on the ancestry of your bronze fish. If it has albino in the ancestry, it may be carrying the albino gene as well as the bronze gene; in which case about 1/2 the fry should be albino. If the bronze ...

Hi Gabs,

If you could provide a picture of the first one, the fish on the left from a direct side angle as you have, but with the face and tail showing

I'm still learning to distinguish C. delphax and, as I understand it, the key points are in the head profile and tail.

Thanks,

Cheryl

Are these not young C. delphax? To me the head profile looks like it has a hump in the predorsal region.

Cheryl Trine

Here's the direct link to Corydoras arcuatus: http://www.planetcatfish.com/catelog/callicht/corydora/12_F.PHP Unfortunately, there isn't an awful lot of information there for this species. You'll find a little bit more at Ian Fuller's website, Corycats, where he has spawning records for some of the ...

The thumbnails for the Cat-eLog entries for Mar 4 and Mar 5 don't seem to be working properly. When I click on a thumbnail for these species (both on the home page and on the species description page), I get the following error: Parse error: syntax error, unexpected ';' in /home/.heathcote/webcat ...

I have been reading Ian's Cory ID book and Shane's Venezuelan trip report, and both mention that some wild caught corys look different after they have been in captivity for awhile. Ian mentions this with regard to C. acrensis and has pictures to accompany it; Shane mentions it in regards to three ...

skids, I understand pH can be very important in hatching cory eggs. If it is too high (my guess is above 7.8 ) the "shells" become to hard and the fry cannot escape. My breeding tank, which I use for water changes in the egg and fry containers has the following parameters: temp = 70 F pH = 7.0 dGH ...

Another possibility I have just thought of--where did you get your pandas from? They may be very highly inbred, especially if they were produced by a hobbyist. If a hobbyist got the fish originally from a club auction, they were probably siblings. He bred them and distributed the offspring to other ...

I am no expert, but I do have over 60 panda fry from my 3 females, ranging in age from just hatched to almost 2 months old and have only lost 2 in the process so far. Some things that need to be considered are: How you are feeding the fry, how many fry and how big of a container you have them in ...

Sorry, my pictures aren't the greatest, but I think you can see the fish well enough, as long as I can get the images to display . I think I have these guys figured out, but I would like some confirmation. The first one I think is C. paleatus: http://img402.imageshack.us/img402/9913/albumpicphp5xb ...

Yep, I was mistaken. Thanks for the clarification, Ian.

Cheryl

I was at the LFS looking at a shoal of unidentified catfish that had 3 pairs of rictal bristles. I thought this would be helpful, because Ian's book had mentioned this characteristic for some fish. When I got back home, I discovered this was mentioned only in reference to some long-nosed catfish ...

There are many species that look identical but are totally different species Is there a list of Cory species 'look-alikes' available -- species that can't be distinguished without killing the fish, or knowing the collection location? I think many aquarists would find such a list quite useful. For ...

Thanks, I'll have to get a copy of that paper.

Cheryl

I expect in some cases it's due to isolated populations with a common ancestor.

Is/has anyone been working on the phylogeny of the Corys?