About Hapa Farms

Hapa Farms specializes in innovative agriculture with a focus on aquaponic and static hydroponic technology and aquaculture.

The many benefits that aquaponic and hydroponic techniques offer include:

  • Efficient crop growth
  • Low resource requirements
  • High production on marginal agricultural lands

Hapa Farms maintains a small aquaponics farm and hatchery in Kahalu’u and designs and builds integrated agricultural systems for residential and educational use.  We provide antibiotic-free and FNO-free fish for aquaculture and aquaponic systems.


Our Mission

Hapa Farms strives to improve and protect Hawaii’s and its environment by practicing and educating in sustainable agricultural techniques.


Contact Information

Please feel free to contact us at hapafarms@gmail.com

The Team

Reyn Horner, Co-Founder and CEO

Reyn is the co-founder of Hapa Farms and currently serves as the CEO. He worked as a Field Manager for five years for a private Land Management and Ecosystem Restoration company that conducted work on Maui, Molokai, Kauai, Kahoolawe, and the island of Hawaii. During this time, he led project teams that performed services such as land clearing, rain catchment construction, fence building, native forestry replanting and maintenance, and native species protection.
Ikaika Bishop, Hatchery Manager

ikaika3Ikaika serves as the Hatchery Manager at Hapa Farms, overseeing the operations of the fish hatchery. He also owns and runs a lo’i kalo in Punalu’u called Keanuenue Farms.

Coleman Smith, Land Manager

colemanColeman serves as the Land Manager at Hapa Farms, overseeing the continued development and use of the property. He has worked as a field technician in the land management and conservation field in Hawaii and is also a licensed helicopter pilot and instructor.


Aquaponics in Education

Aquaponics illustrates scientific concepts such as the carbon cycle, the nitrogen cycle, the hydrogen cycle, and photosynthesis.  Additionally, students learn about sustainability and agriculture, and benefit from the crops that they help to grow.

In addition to designing and building the aquaponic and static hydroponic systems, Hapa Farms provides training in the science behind aquaponics as well as system maintenance, fish care, planting, and pest control for school faculty.

Backyard Aquaponic Systems

Hapa Farms provides antibiotic-free and FNO-free fish for aquaculture and aquaponic systems and offers the design and build of residential aquaponic systems.  These systems can range from small residential systems to commercial-scale units and are custom designed based on the needs of the homeowner and the limitations of the space available.  Maintenance and basic food safety training is also available.  Fees are available upon request.  We also recommend that you build your own system: