The idea that goldfish have three second memories is a myth. Studies have shown they have a memory of at least three months, and can recognize multiple colors and sounds.
They are sufficiently intelligent that they can be trained to do simple tricks such as pushing a lever to get food. At least one has been trained to do complex tricks, like push a small soccer ball through a goal. There is a youtube video showing four goldfish that were tarined to swim in syncronized patterns…the patterns could change on the fly depending on the hand gestures of the trainer. Fish can respond to training using positive reinforcementjust as many other animals do.
Some tests have indicated that their memory and visual accuity seems to be enough to allow them to distinguish between different humans, and can identify certain humans as providers of food. The same tests indicated that they can associate sounds (voices) with food as well.
haha for $25 you can’t beat it! Thank you, Not a problem!
No, it’s not loud at all unless you push the flow knob to far one way. It’s a pretty average filter that just has a disposable filter cartridge. I suppose I would rate it a 6-7. When on the lower flow settings I feel like it doesn’t push all the water through and that it backs up the water and it just flows over. With regular water changes everything should be fine though.
It reminded me of that! but I’m unsure if the title is reserved for red-cap orandas that have a wen growth