Goldfish are omnivorous scavengers. They like to feed on insects, bloodworms and sometimes they like to snack on plants. So you should feed them a variety of food. Fish flakes and pellets usually fulfill their non-vegetarian diet.

Some goldfish can see and remember well enough to distinguish between people. They often notice the person that feeds them each day and will get excited when they see them. There have been cases where goldfish have been trained to do tricks like swim through mazes, swim through hoops, or even push a ball into a net.

First of all, it’s normal to see your goldfish swim, play and explore during the day and sleep at night. Yes, this is normal goldfish behavior and very common these days. Goldfish are not as smart as other pets like cats or dogs, but they can easily tell that the people they live with love them.

To answer the question: Yes, goldfish can live alone. In fact, many goldfish can live long, healthy, happy lives all on their own. Just remember though, not all goldfish will be happy on their own, and some would prefer the company of other tank mates.

Your fish are happy and healthy when they:

1. Swim actively throughout the entire tank, not just hanging out or laying at the bottom, floating near the top or hiding behind plants and ornaments.
2. Eat regularly and swim to the surface quickly at feeding time.

Researchers have found that fish recognize each other and gather information by eavesdropping. They’re capable of remembering past social interactions that they’ve had with other fish, and they show affection by rubbing against each other. Dr.

Perhaps more importantly, can they communicate with each other at all? Well, just like us humans, fish can communicate with one another, and they do so using sound, smell, coloration, motion, bioluminescence and electric impulses.

10 Ways to Ensure Your Pet Fish is Happy & Healthy

1. Making Sure Your Fish Is Adapting.
2. Do It For More Than Decor.
3. Re-create A Natural Environment.
4. Keep The Water Conditioned.
5. Keep The Aquarium Clean!
6. Keep The Tank The Right Temperature.
7. Remove Excess Algae.
8. Introducing New Fish To The Aquarium.