Berlin Swordtail
The Berlin Swordtail (believed to be named after the capital of Germany where they were originally bred) will make a fantastic addition to your freshwater aquarium. They are an active fish that will add immediate visual interest to your water environment with their showy red bodies with irregularly distributed black dots and spots, and the distinguishing large swordtail feature in males. In their natural environment, Swordtails make their homes in rapidly flowing streams and rivers, and because of this active nature, we recommend a tank size of twenty gallons or more with a secured cover.
This stock is an easy choice for those who want to build an interesting environment quickly. With a peaceful temperament, Berlin Swordtails grow to four inches in length and are easy to keep.
| Specifications |
|---|
| Species: Berlin Swordtail |
| Gender: Male (distinctive swordtail fin) |
| Size: Up to 4 inches |
| Temperament: Peaceful |
| Water Type: Freshwater |
| Minimum Tank Size: 20 gallons |
| Recommended Tank Feature: Secured cover |
FAQ
What is the typical size of a Berlin Swordtail?
Berlin Swordtails grow to a maximum length of four inches.
Are Berlin Swordtails aggressive or peaceful?
Berlin Swordtails have a peaceful temperament and are suitable for community tanks.
What kind of tank setup is recommended for Berlin Swordtails?
A tank of at least twenty gallons with a secure lid is recommended due to their active nature and tendency to jump.

Jason Glover –
Added Berlin Swordtails to my 25-gallon tank and they’ve been active and colorful since day one. The red bodies with black spots stand out well. They’re peaceful and don’t bother other fish. Easy to care for and a great visual addition.
Richard Morrison –
The fish look very vibrant and the swordtail fin is quite striking. I kept them in a 20-gallon tank with a lid. They swim actively and seem happy. A good choice for beginners who want color and movement.
Richard Cameron –
I’ve had these swordtails for three months now. They’re active, not aggressive, and blend well with my community fish. The black spots on their bodies make them look natural and unique.