Will a betta fish kill guppy fish?

Here's why:

* Betta's Natural Predatory Instincts: Bettas are carnivores and have a strong instinct to hunt and kill smaller fish. While they may not actively hunt guppies all the time, they may see them as prey and attack them if they feel threatened or hungry.

* Territoriality: Male bettas are especially territorial. They can become aggressive and attack any fish that they perceive as a threat within their space, including guppies.

* Size and Aggression: Guppies are much smaller than bettas, making them easy targets. Even female bettas can be aggressive towards other fish, especially if they're feeling stressed or crowded.

Factors that increase the risk:

* Small tank size: A limited space can increase stress and aggression in both species.

* Lack of hiding places: Guppies need places to escape a betta's aggression.

* Overfeeding: Overfeeding can make bettas more aggressive and trigger their hunting instincts.

Important Note: It's important to remember that every betta is different. Some bettas are more peaceful than others, but it's best to avoid keeping them with guppies to avoid potential conflict and harm.

Alternatives:

If you want to keep bettas and guppies together, you can try:

* Separate tanks: This is the safest option.

* A very large tank: With ample hiding places for the guppies, a large tank can create more space for everyone, but it's still a risky endeavor.

* "Peaceful" betta varieties: Some betta varieties, such as the "halfmoon" or "veiltail" are known to be less aggressive, but this is not guaranteed.

Do your research and choose the safest option for your fish. It's better to be cautious and avoid unnecessary risk.