1. You might get other Koi in a fight
2. You can leave a mess in their home, and might make them find somewhere else to live... which changes a lot of things around.
yes they do hibernate. yes they do hibernate.
I would have to get to your place and access your fish to feed them by adding suitable fish food to the surface of their container.
no
Beacuse they are fish, are you stupid!
Sticklebacks feed on small crustaceans and fish larvae.
no catfish can't vomit because all the fish around them would die of sickness.
Hagfish and lampreys are apart of Agnatha which means jawless fish. Hagfish are a parasite fish but can be free swimming. Both jawless fish will feed on carcasses on the bottom of the seafloor.
That's a good question. You'll notice in nearly any fish that it mouth will seem to point either upwards, downwards or straight ahead. Fish that feed on things like insects and things that fall onto the surface of the water in the wild will almost always have a upturned mouth to make it easier to feed. A good example of this is the Betta. Some fish feed on items as they sink to the bottom or prey on other fish. Most of these fish have their mouth straight ahead. Then you come into the bottom feeders. Many fish like algae eaters and cory cats forage the bottom of the tank for food. Because they eat off of the bottom their mouths face down to make it easier to eat.
I would say none of these
According to Wired Science a certain type of Antarctic cod (the only type of fish KNOWN to hibernate) seems to hibernate due to changing light conditions. For more information, including a picture, click link below:
You should give food to your fish in order to stay alive and helthy. 😊
sure