What temperature for my corydoras?

[GabParker232]

I've got sterbai, schwartz and peppered corydoras in my 30g. I've got it at 25°C but what is the optimum? Are they all OK at this temperature?

 

[AilyNC]

Pop them in the search bar on Seriously Fish, one at a time of course, and you'll find their temp ranges.

Seriously Fish — Feeling fishy?

www.seriouslyfish.com

 

[Byron]

Some species, like Corydoras sterbai, C. duplicareus, and a couple others, manage at slightly warmer temperatures than most species in the genus prefer. And there are some like C. panda that are cooler water species. But a temperature of 24-25C (75-77F) is, so far as I can remember, well suited to all of them. My pandas [among some 40-60 from 12 species] have lived, spawned, and fry survived for over a decade at a constant temperature of 24.5 C (76F) [except for temporary summer heat waves].

 

[GabParker232]

Pop them in the search bar on Seriously Fish, one at a time of course, and you'll find their temp ranges.

Seriously Fish — Feeling fishy?

www.seriouslyfish.com

OK will do

Some species, like Corydoras sterbai, C. duplicareus, and a couple others, manage at slightly warmer temperatures than most species in the genus prefer. And there are some like C. panda that are cooler water species. But a temperature of 24-25C (75-77F) is, so far as I can remember, well suited to all of them. My pandas [among some 40-60 from 12 species] have lived, spawned, and fry survived for over a decade at a constant temperature of 24.5 C (76F) [except for temporary summer heat waves].

OK nice. Hopefully will be fine

 

[mbsqw1d]

For peppered (c.paleatus) ive read them being described as subtropical, with temp range of 18C-23C

https://www.fws.gov/fisheries/ans/erss/uncertainrisk/ERSS-Corydoras-paleatus-Nov-2017-FINAL.pdf

 

[GabParker232]

For peppered (c.paleatus) ive read them being described as subtropical, with temp range of 18C-23C

https://www.fws.gov/fisheries/ans/erss/uncertainrisk/ERSS-Corydoras-paleatus-Nov-2017-FINAL.pdf

Oh, not so good. Hopefully will do OK as can't go any lower because of my sterbai

 

[Byron]

Oh, not so good. Hopefully will do OK as can't go any lower because of my sterbai

I think this question of temperature is getting a bit off the rails. The data in the link in post #5 is to a publication of the US Department of Fisheries concerning non-native fish (Corydoras paleatus here) being introduced into native US waters. The references are OK, but following them through ends up with the temperature range of 18-23C coming from a book on aquarium fish published in the Barron's Education Series. This is not exactly a scientific source. And don't misunderstand me, I am not saying the data is false, just that one does have to source out the scientific data behind ranges wherever they appear.

Second point, the range of this species is huge, compared to most Corydoras species. Within about 2/3 of the South American continent (which is the stated range) there will be considerable variation in temperature, and while I would have to research this species down to specific water courses to be certain, logic tells me that it is likely to be found in a number of watercourses with a temperature somewhat higher than this arbitrary range.

Third point. All species of Corydoras have a preferred temperature range that falls within the 21-26C/70-78F general range. Species like C. panda prefer the lower end. Some like C. sterbai may tolerate/manage in the upper end, but all with be fine around 24-25C/75-77F.

 

[GabParker232]

I think this question of temperature is getting a bit off the rails. The data in the link in post #5 is to a publication of the US Department of Fisheries concerning non-native fish (Corydoras paleatus here) being introduced into native US waters. The references are OK, but following them through ends up with the temperature range of 18-23C coming from a book on aquarium fish published in the Barron's Education Series. This is not exactly a scientific source. And don't misunderstand me, I am not saying the data is false, just that one does have to source out the scientific data behind ranges wherever they appear.

Second point, the range of this species is huge, compared to most Corydoras species. Within about 2/3 of the South American continent (which is the stated range) there will be considerable variation in temperature, and while I would have to research this species down to specific water courses to be certain, logic tells me that it is likely to be found in a number of watercourses with a temperature somewhat higher than this arbitrary range.

Third point. All species of Corydoras have a preferred temperature range that falls within the 21-26C/70-78F general range. Species like C. panda prefer the lower end. Some like C. sterbai may tolerate/manage in the upper end, but all with be fine around 24-25C/75-77F.

Thanks for the info. Will just have to see how they do.