What tropical fish can live with goldfish?

It's generally not recommended to keep tropical fish and goldfish together. Here's why:

* Temperature requirements: Tropical fish need warmer water temperatures (78-82°F) than goldfish (68-72°F). This makes it difficult to find a comfortable temperature for both types of fish.

* Water chemistry: Tropical fish prefer a higher pH and softer water than goldfish.

* Diet: Goldfish are omnivores, eating a variety of foods, while tropical fish are often herbivores or carnivores. This makes it difficult to provide a balanced diet for both groups.

* Aggression: Some goldfish can be aggressive towards smaller fish, potentially injuring or killing tropical fish.

* Disease: Different species of fish can carry different diseases, which could spread between them.

Possible Exceptions:

* Some small, hardy tropical fish like zebra danios or neon tetras *might* be able to tolerate slightly cooler temperatures and different water chemistry for a short period. However, this is not ideal and it's best to avoid it if possible.

Alternatives:

* Keep goldfish with other goldfish: Goldfish are social creatures and thrive in a school.

* Keep tropical fish with other tropical fish: This allows you to create a thriving ecosystem with compatible species.

If you're unsure, it's always best to consult with a reputable aquarium specialist. They can provide the best advice for your specific needs and ensure the health and well-being of your fish.