Water gardens can be easily linked to koi ponds and provide
many advantages:
- water and bog plants can be enjoyed without being uprooted by hungry koi
- these
plants help remove excess nutients from the system for better water quality. This is known as vegetal filtration
- these add-on ponds can be set up with drainage systems and can act as a sump filter, creating a hands-free way to help
clean solid fish waste from the main pond