Are there any fish that die easily?

It's difficult to say definitively which fish die "easily" because it depends on many factors:

* Species: Some fish are naturally more delicate or have specific needs than others. For example, saltwater fish are generally more sensitive to water quality changes than freshwater fish.

* Environment: Water temperature, pH, oxygen levels, and the presence of pollutants can all significantly impact fish health.

* Individual health: Just like humans, some fish are more prone to illness or injury.

* Handling and transportation: Improper handling during purchase or transportation can stress fish and lead to death.

Here are some factors that contribute to a fish's vulnerability:

* Stress: Sudden changes in temperature, water parameters, or environment can severely stress fish, making them more susceptible to disease.

* Poor water quality: Inadequate filtration, high ammonia levels, or low oxygen levels can quickly kill fish.

* Disease: Fish can suffer from various infections and parasites, making them weaker and more likely to die.

* Parasites: External or internal parasites can weaken a fish and make it more susceptible to other issues.

Rather than focusing on which fish die "easily", it's more important to understand how to provide the best care for your fish. Research your fish's specific needs, set up a suitable aquarium environment, and monitor water quality regularly. This will give your fish the best chance of a long and healthy life.

If you are considering keeping fish, please do your research and ensure you can provide a safe and healthy environment for them.