Fish are smart.

[Tetra1990]

People seem to think fish have a 3 second memory. Really? If fish are that 'dumb' how did they survive for as long as they have? My fish know when it's feeding time. I get home from work at 3 in the afternoon. When I open the lid, my fish are tuning to the surface and very excited. Who agrees with me on this?

 

[OBEYtheFISH]

True that

 

[Cornstar]

Also, certain fish are only comfortable with their owners and not strangers. So that kind of proves who they know who they can trust.

 

[Innovator]

Depends on how you justify what is smart. It's a stimulated reaction based on the reward system (they get fed). All fish, ocean too, will congregate at structured times if there is a repetitive feeding "event."

 

[khartig]

I know mone know when it's feeding time. My tank is right next to my computer desk where I sit to work on my side business and about 5pm when I normally feed them they gather at the front/center of the tank and wait till I get up and put food in. It's a pretty funny site to see.

 

[JoeyGeeze]

My tank is in the hallway area which is by the front door. When I walk in I can see them kinda doin their own thing or in the back of the tank. The minute I approach the tank they all come right up to the glass lol.

 

[OBEYtheFISH]

I've seen goldfish play soccer