Submitted by Tardigradelegs t3_y30ixz in science
I worked at a fish hatchery and some of the larger fish could tell if you were coming by to feed vs catch them. I think they recognized the fish net or maybe our posture?
They would also know if their food should float or sink, and rush to the appropriate area. I’d consider that a pretty decent memory
Fish are smart. My mollies look at me when they are hungry and get excited when I walk over. Also, I read something on how fish do indeed feel pain. I think it was something on how Japanese chefs kill the fish used for sushi as if they feel pain hey are not as good.
Yes, a lot of research on pain in fish now, this one off the top of my head: https://phys.org/news/2019-09-fish-pain-similarity-mammals.html
Fascinatingly horrifying that people believed they didn’t feel pain.
Dude, people used to think human babies didn't feel pain. Or at least didn't remember so no anesthesia operations used to be a thing. I mean, I get it, probably easy to eff up a baby with anesthesia but still.
Wow, it seems like we really operated under the principle of ‘if they don’t say ouch, that must mean they don’t feel pain!’
It seems so stupid in retrospect. Apparently we’re just terrible at having empathy for other sentient living things sometimes.
Uhm, some doctors still think black people don’t feel as much pain. Stupidity is rather prevalent in humans.
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Fish quickly recognize any lure sold at Canadian Tire. Sometimes you need to make something custom to really get reliable strikes.
I’d call goldfish highly variable. Some friends had had pet goldfish that were absolutely ‘the lights are on but nobody is home’. Not a single thought going on in there.
Yet one friend had a big goldfish that was super smart, recognized his owner and got super excited when he was around. It was a dog trapped in a fish body.
A fish tank is a pretty terrible environment in which to live out a life. I’m not surprised that otherwise lively fish would shut down
…well this depressed me
No different from an indoor cat I guess. If you have a suitable set up (enough space, stimulation) fish will be fine.
Correct and what’s more, feral cats only live about five years. It’s rough out in the jungle.
I've got an angel fish that comes to the front of the tank when I get home every evening and literally stares directly at me until I feed them.
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My three neon tetras even do this. They get noticeably excited when I grab the food bag
It’s amazing how my fish react to me, my loaches will come to the surface and do little jumps when the food is coming.
They also like to launch themselves out of the tank in protest when the food hasn’t come fast enough…
Loaches are like tiny aqua-puppies, I had a group of 10 when I last kept an aquarium and they were the life of the party. Zipping around, cart-wheeling, making excited clicking noises you could hear from across the room, and as you said doing mini flicks and jumps when you lifted the lid for feeding time. If I were to set up a tank again I think it would just be loaches.
I made this today
My kuhli loaches are horribly shy (as they tend to be). Weirdly enough they're less wary of me if I'm wearing red, which I chalk up to them having red cherry shrimp for tankmates. They're probably used to red things that sometimes move abruptly.
I have a colour changing light in my tank that moves between blues and greens, but at 5pm the tank goes red telling me to feed the fish. When the tank goes red the fish get agitated and hang about in the feeding corner.
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I put koi in our pond last summer. The koi used to run away from me, but now, as I come to feed them, they swarm to me bc they know I mean food. Yea, they’re not as dumb as people think.
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