Can Koi fish give birth in tanks?

Koi fish are carp, and carp are oviparous. This means they lay eggs instead of giving birth to live young.

Therefore, Koi fish can lay eggs in tanks, but they don't "give birth" in the traditional sense.

Here's what you need to know:

* Koi need specific conditions to spawn: They need warmer water temperatures (around 70-80°F), sufficient space, and a suitable spawning substrate like plants or gravel.

* Successful spawning in a tank is difficult: While it is possible, it's challenging to create the ideal environment for Koi to spawn in a tank.

* Eggs require care: Once laid, the eggs need to be protected from predators and kept clean for them to hatch.

So, while Koi can lay eggs in tanks, it's not a guaranteed process and requires careful planning and preparation.