Top 15 Koi Forums in 2025

1. Extreme Koi Forum

Forum https://www.koiforum.uk/ + Follow
Welcome to the Koi Forum UK. Post here about any Koi health problems and water quality problems, get quick and effective advice, discuss methods of protecting your fish, talk about the use of Reverse Osmosis in the Koi pond, share your Pond construction and pond building diaries by posting pictures of your new project, and discuss methods of protecting your fish and pond equipments.MORE View Recent Threads

2. North Wales Koi Club Forum

Forum http://www.northwaleskoi.co.uk/forum/ + Follow
Visit North Wales Koi Club Forum, a friendly, down-to-earth club, where new members are always welcome. Get advice on Koi ponds & equipment, talk about water quality & treatment, ask for your Koi's health-related information, and post your recent pond pictures.MORE View Recent Threads

3. Koi-Live Koi Forum

Forum https://www.koi-live.de/ + Follow
The big koi and pond forum is all about pond construction, pond technology, koi food, koi diseases and garden dicussions. discuss the varieties & evaluation of Koi, talk about the Pond water & the most important parameters, and more.MORE View Recent Threads

4. Koiphen Forum

Forum https://www.koiphen.com/forums/ + Follow
Welcome to the Koiphen, as the largest Koi and pond community on the internet, the forum provides help and advice on pond building as well as Japanese Koi and Goldfish care including disease prevention and treatment. Post your Koi, Goldfish, & pond related questions, and get tutorials & guides for new pond owners and builders.MORE View Recent Threads

5. Koi-Bito Forum

Forum https://www.koi-bito.com/forum/ + Follow
If you are looking for expert advice on pond building, filtration, koi selection, or information about Japanese koi breeders, you're in the right place, Koi-Bito is one of the oldest and most knowledge-rich koi forums online. Post information concerning koi clubs & koi shows, participate in koi grow-out competitions, and share experiences.MORE View Recent Threads

6. Arofanatics Fish Talk Forums » Goldfish & Koi

Forum http://www.arofanatics.com/forums/forumdispla.. + Follow
As one of the best Koi and pond communities on the internet, the Arofanatics Fish Talk Forums provides help and advice on pond building as well as Koi and Goldfish care. Explore all discussions ranging from health to nutrition and diet.MORE View Recent Threads

7. Reddit » Koi

Forum https://www.reddit.com/r/Koi/ + Follow
Is your koi depressed or acting strange? need help for their worrisome behavior? join this subreddit, a place to ask about Koi, show off your Koi, and much more. Learn to identify koi variety, ask for suggestions for a good pond, food, and more.MORE View Recent Threads

8. Garden Pond Forums » Fish & Koi Talk

Forum https://www.gardenpondforum.com/forums/fish-k.. + Follow
The Garden Pond Forum is a friendly chat board for anything related to koi, goldfish, and garden ponds. Chat about preparing your pond, plants, and fish for the winter seasons, discuss things such as water testing, chemicals, and algae, and get help with koi fish illness and disease information.MORE View Recent Threads

9. Wamas Forum » Blue Ribbon Koi

Forum https://wamas.org/forums/forum/78-blue-ribbon.. + Follow
This forum is dedicated to all marine talks. Join in all the latest blue ribbon Koi conversations, show off your pictures, ask questions, discuss ideas about automating your tank, and share your great experiences with your koi.MORE View Recent Threads

10. Aquarium Forum » Koi and Goldfish

Forum https://www.aquariumforum.com/forums/koi-and-.. + Follow
Aquarium Forum is a community dedicated to Aquarium owners and enthusiasts for discussing the different types of koi and goldfish, their care, how to tell males from females, fancy goldfish, pandas, ryukin, comets, and more.MORE Since Mar 2008 View Recent Threads

11. Australian Koi & Goldfish Forums

Forum https://auskoi.proboards.com/ + Follow
Join the Australian Koi & Goldfish forums, Discuss your pond and filtration plans, & DIY solutions, talk about the best food for your type of fish, get help on diagnosing & treating any pond issues, and sell your koi or goldfish-related items here.MORE View Recent Threads

12. Fish Lore Forum » Koi

Forum https://www.fishlore.com/aquariumfishforum/fo.. + Follow
Fishlore forum provides aquarium fish information for both freshwater and saltwater hobbyists. This section is for discussing the often very expensive Koi. Find people that like to talk about fish, plants, corals, aquarium builds, equipment, & reef tanks, and get recommendations on selling or re-homing Koi.MORE View Recent Threads

13. Rocky Mountain Koi Club Forums

Forum https://www.rockymountainkoiclub.org/forums + Follow
Welcome to the Rocky Mountain Koi Club forum which brings together people with similar interests, koi, and ponds, giving them the chance to share their knowledge and experiences. Ask your questions and get answers and ideas for creating a pond, discuss koi health, and share knowledge on pond maintenance.MORE View Recent Threads