Granulated catfish (Pterodoras granulosus) are armored catfish species that are relatively easy to keep, characterized by their rough, granulated skin texture and sharp spines along their flanks; they are omnivorous and will eat anything including pellets and fish, with females typically being larger and more outgoing than males, and they prefer to stay in the back of large tanks (1800+ gallons) where they can rest in currents, though they rarely recognize feeders or humans as food sources and are generally not trainable.
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Three granulated catfish Pterodoras granulosus 2ft 2ft 2.5ftAdded:
Been a long time since we spoke about granulated catfish.
One of the armored catfish.
Uh we have four of them.
Three of them are quite sizable.
Fortunately, they all keep to the back.
Uh, two of them are about 2 ft.
I don't like my flashlight.
And one of them is about two and a half.
between two and a half and three.
I think it's a she and uh a female and two males.
And one of them is small, probably about a foot or so.
It usually hides somewhere behind all of them there. So cannot see him very well.
The female is the biggest fish in this tank in the 18800galon.
They're very easy fish. Nothing complex about keeping them. I I'd say they eat anything. Pilots, fish, they just inhale it all.
Josh of Ohio Fish Rescue tells me that they had troubles with theirs.
Sometimes they break off their pectoral spines when they fight or when they try to jam into a small or a tight spot.
ours uh sometimes fight, but usually it's rather inconsequential.
They're not they don't fight in a mean way or to injure each other. Even though sometimes they're the fins and and can be terrored from the disputes, I think especially the two males are are into it.
I know the female is uh older. We got her about 2015, so she's been 11 years with us. One of the males is two or both of them maybe.
I don't remember anymore. Um we adopted some of those out. We had about five of them or six.
The smaller one actually came back to us after the an unsuccessful adoption. I guess they're keeping to the back of this 1800 galon. So they're about 6 ft away from us.
It's hard It's hard to see them.
It's a 16T long tank.
Some of you may remember I installed those uh power heads to try to blow them out of from behind so they get tired and rest here closer to the That's the power heads. Uh closer to the front window so we can see them better.
They have kind of funny uh position of the eyes on on on the top of them as if they're a flounder.
They don't seem to use their eyes much anyway.
It's one of the males or supposed males.
Pretty lazy by the date.
probably by night too. Unless food is in the water, they don't move much. That little lab that the male just uh swam, they only do these uh once in a while.
But normally they just sit in a current against the current just like that and swim in one spot.
Sometimes they're able to just hang on to the bottom or to the sides and not having to swim and just stay in the in the current facing it.
The female is much more outgoing in terms of the feeding. She comes out almost every time.
The males, they they're on and off. They don't seem to be as they probably don't even eat half of what the female eats.
They have a pretty sizable mouth. They can inhale the 6-in herring, no problem.
And they swallow anything whole and quickly to maintain their u round hard to swallow shape.
That's this male again left.
Heat. Heat.
It's picking up some poo.
I don't know why I fed this thing heavy two days ago, I think.
And then I also gave them pallets I think yesterday or something like that. So they are they should not be hungry at all.
People rarely show big ones and talk about them, but as you can see, there's not much to say.
They never recognize as they never recognized a feeder for me. They never recognized me as a source of food.
They never come to interact like [ __ ] do. And um giraffe catfish do that. The arenis.
Yeah. Out of the doradids, I think only the [ __ ] can be trained to do that in my experience anyway like easily.
Maybe with a good effort these could be trained too, but they not not learning themselves.
without an effort or might be not trainable.
Just unusual cool looking catfish with very sharp huge very sharp spikes and hooks ending in in sharp end and along their flanks. And you can see why they're called granulated catfish.
Their skin looks rough and granulated.
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