The aquatic plants that are suitable for being placed in a koi fish tank include Moss, Crinum calamistratum, Dwarf Amazon Sword, Amazon Sword, and Water Sprite, etc. These aquatic plants usually won't be eaten by koi fish, so they are suitable to be raised together with koi fish.
Moss: This kind of aquatic plant grows rapidly and can quickly cover the walls of the fish tank, providing a good living environment for koi fish.
Crinum calamistratum: Its leaves stand upright in the water like waves, and it's very difficult for koi fish to nibble on them. Therefore, it's suitable to be raised together with koi fish.
Dwarf Amazon Sword: This aquatic plant is not easily nibbled on by koi fish and is suitable to be raised together with them.
Amazon Sword: It belongs to large aquatic plants. Generally, koi fish won't nibble on it and it's suitable to be raised together with koi fish.
Water Sprite: This kind of aquatic plant is also not easily eaten by koi fish and is suitable to be planted in a koi fish tank.
These aquatic plants can not only provide a good living environment for koi fish but also enhance the aesthetics of the fish tank. Choosing the right aquatic plants can make the koi fish tank look more lively.