Corydoras
FishWikipedia
32
MENTIONS
11
EPISODES
6
PODCASTS
Search complete. 32 mentions across 11 episodes found for "Corydoras".
Oct 5, 2026
speaker_0HOST
But before we move on to how to actually set up that hospital tank, I have a behavioral question about isolation.
speaker_0HOST
Say I have that single neon tetra or a Corydoras and they have a bacterial infection.
speaker_0HOST
These are highly social schooling species.
speaker_1HOST
Very much so.
speaker_0HOST
But there are exceptions, right?
speaker_1HOST
You always have to consider the species.
speaker_1HOST
If you have Corydoras, certain loaches or stingrays, placing them on a bright, reflective, totally bare glass bottom can cause severe neurological stress.
speaker_0HOST
Because their instincts rely on substrate.
speaker_1HOST
Let's look at two identical populations of hydra.
speaker_1HOST
In scenario A, you have a 55-gallon tank full of adult angelfish and robust Corydoras.
speaker_1HOST
If a hydra bloom occurs, it is merely interesting biodiversity.
speaker_1HOST
The fish are immune to the stings, and the hydra will likely die out once they exhaust the microfauna.
CoryHOST
I was checking on my eggs.
CoryHOST
Right before we went live, I looked over and I was like, "Wait, Nerite snail eggs or Corydora eggs?" And so I had some Aspidoras that, uh, laid eggs right at the top left of the corner, first time ever for this, which I got them.
CoryHOST
Shout out to Small World Aquatics.
CoryHOST
Don't go there because I like to go there and shop in secret and buy all their cool stuff.
CoryHOST
And that's actually why I left them in there.
CoryHOST
I was gonna make it just guppies, but I was like, if I take the orange lasers and I move them to a different tank, the, the orange laser train might like stop or get disrupted for a few months, and that'll kill the enjoyment my wife is getting.
CoryHOST
And so they're staying in there so that she can keep collecting eggs when they lay them and still, you know, grow her little, uh, Corydora baby empire.
CoryHOST
Uh, can one day you go back to being Realtor Cory and review houses that have 16 TVs and cryptic black toilet paper with doorless closets? [chuckles] Yeah, maybe there'll be some kind of a meme stream or something.
![The Aquarist’s Edge [Weekly Aquarium Podcast]](https://particle.news/cdn-cgi/image/format=auto,width=128/https://cdn.particle.pro/url/media/6604efc3-a4e7-5344-af64-9f8f336d7d64/7e37579d3314bede36c22e40a77698f7d694c6c6e8a5d2207636c9cc03db5911)
Arthur PrestonHOST
Now, let's match them to animals because this is where the choice of substrate becomes absolutely vital.
Arthur PrestonHOST
Let's start with probably the most discussed bottom dweller in the hobby, Corydoras.
Arthur PrestonHOST
And as longtime listeners of this podcast will know, they are some of my favorite fish.
Arthur PrestonHOST
I refer to them as our aquarium Labradors.
Arthur PrestonHOST
If it's smooth and rounded and kept clean, they'll manage, but they won't forage in the same way.
Arthur PrestonHOST
And we'll come back to the barbel question in the debates section later on because it's more complicated than people often make out.
Arthur PrestonHOST
What about loaches? Corydoras are burrowers.
Arthur PrestonHOST
On sand, they'll disappear under the surface and pop out somewhere else, which can be quite alarming the first time you count your fish and come up short.
CoryHOST
And then...
CoryHOST
Then there's some fish that are just like, oh, they're breeding, like Corydoras.
CoryHOST
It looks like they're surfing glass or laying eggs.
CoryHOST
And so I do wonder, is that a stress sign all the time, or is it something we've manufactured? And I don't know because I haven't really seen studies, and I don't know how to really evaluate it because when a fish touches a net, months later they can still detect – stress hormones in their blood.
CoryHOST
Shorthand, we're all using a lot of shorthand in the aquarium hobby.
CoryHOST
I still call them Corydoras.
CoryHOST
In fact, we just call them Corys, even though they're Ostogaster and all the other ones that I'll never remember.
CoryHOST
I'm too old.
CoryHOST
Let's see.
CoryHOST
I've noticed a lot of fish tubers choosing Panagara over Ottos and or Corys.
CoryHOST
They're a good fish.
CoryHOST
They're way more available than they were.
RayPANELIST
turtles hey
ToeHOST
my man's about to be a pappy again word yeah i always wanted to like i told these guys i said i bought fish for them yo get real quick i bought 10 and endler fish they like guppy yeah i only see five now i don't know where i know one died i don't know where the other ones went Then I had 15 little fry of the Corydoras two days ago.
ToeHOST
I took a video of it.
ToeHOST
I posted it up on YouTube.
speaker_1HOST
And in two minutes, those danios can consume enough caloric energy to sustain themselves for an entire week.
speaker_0HOST
Okay, but what about the rest of the tank? Like if I've got Corydoras at the bottom or maybe a shy honey garami hiding in the water wisteria.
speaker_1HOST
That is exactly the problem.
speaker_1HOST
While your danios are gorging themselves into a state of metabolic overload, your bottom-dwelling Corydoras might not even realize food has hit the water column until minute three.
speaker_0HOST
Because they're waiting for it to sink.
speaker_1HOST
Right.
11 MINS LATER
speaker_1HOST
For them, a slow-sinking granular food is the ultimate trigger for their natural hunting instincts.
speaker_0HOST
And finally, the benthic lair, the bottom feeders.
JoshHOST
So this episode is about Cory cats.
JoshHOST
And it gets a little confusing for some people because you probably, if you were in the ornamental world, you probably thought that all these little Cory cats are Corydoras.
JoshHOST
But they are not.
JoshHOST
They've sort of been reclassified.
JoshHOST
I don't know when this actually happened.
JoshHOST
They
ChristineHOST
were at one point, though, right? They all were Corydoras at some point or something like that.
ChristineHOST
I don't know.
1 more episode mentions Corydoras.
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