Size:
* Minimum: A 55-gallon tank for a small group of 4-6 piranhas.
* Ideal: A 100-gallon tank or larger for a larger group or multiple species.
Shape:
* Rectangular: Offers a more natural habitat.
* Round: Avoid round tanks as they can be stressful for piranhas.
Filtration:
* Strong filtration: Piranhas produce a lot of waste, so strong filtration is essential.
* Multiple filters: Consider using multiple filters for better water quality.
Temperature:
* 78-82 degrees Fahrenheit: Maintain a consistent temperature using a heater.
Water Parameters:
* pH: 6.5-7.5
* Hardness: 5-15 dGH
* Ammonia, Nitrite, Nitrate: These should be at zero levels.
Substrate:
* Sand or gravel: Choose a substrate that won't scratch the fish's sensitive skin.
Plants and Decorations:
* Few plants: Piranhas will uproot plants, so choose sturdy, artificial plants or floating plants.
* Driftwood and rocks: These can provide hiding spots and create a more natural environment.
Lighting:
* Dim lighting: Piranhas prefer a dim environment.
Feeding:
* Live or frozen food: Feed a varied diet of live or frozen foods, such as insects, fish, shrimp, and worms.
Socialization:
* Group housing: Piranhas are social fish and should be kept in groups of 4-6 or more.
Important Considerations:
* Aggressive nature: Piranhas are aggressive fish and require experienced aquarists.
* Legal regulations: Check local laws regarding owning piranhas.
* Proper setup and maintenance: Ensure the aquarium is properly set up and maintained to prevent health issues.
It's essential to research and understand the specific needs of piranhas before acquiring them. Their aggressive nature and demanding needs require a knowledgeable and committed owner.