I Designed This Koi Filter From Scratch… And It Works! | T.N.J. | EP #100

In this 100th episode of The Nishikigoi Journal, Ricky shares the full process of building and testing a completely custom pump-fed filtration unit for one of his koi ponds. Designed to maximise biological capacity in a compact space, this unique system combines traditional brush filtration, a fluidised bed, and a trickle tower — all in one. It’s a return to the hands-on, practical side of koi keeping, blending old-school principles with modern execution. From concept and plumbing to troubleshooting and success, this episode captures the excitement and problem-solving that defined the early days of koi system building. ⸻ 📖 CHAPTERS: 0:00 – Introduction & Japan Trip Announcement 0:30 – A New Filtration Project Begins 1:15 – Design Overview & System Purpose 2:00 – Component Breakdown & Functionality 4:30 – Plumbing In & First Installation 6:00 – First Water Test & Initial Issues 7:30 – Fixing Flow Paths & Key Lessons 9:00 – Filter Running & Early Results 11:00 – K1 vs K+ Media Discussion 13:00 – Trickle Tray Performance 15:00 – Polishing Options & Fines Management 17:00 – Multi-Bay Filtration: Still Relevant? 19:00 – Final Tweaks & System Capacity 20:00 – Bonus: Ricky & AJ’s Home Fish Tank Setup 21:30 – Outro & Plans from Japan ⸻ Koi Online – Your Go-To Destination for Buying Koi Online 🛒 Looking for a fun, interactive way to buy Japanese koi? Koi Online is a specialist online brand where new koi are regularly listed for sale. 🔹 Shop Koi Online: https://koionline.co.uk – Browse & buy Japanese koi anytime, with new stock added regularly. 🔹 WhatsApp Auctions: https://chat.whatsapp.com/HwMm4sFgNDE... – Get involved in weekly koi auctions, bid easily, and secure top koi at great prices. ⸻ Ricky Stoddart Nishikigoi – High-End Japanese Koi 🏆 For those passionate about the very best in Japanese koi, Ricky Stoddart Nishikigoi offers hand-selected koi from Japan’s top breeders. 🔹 WhatsApp Auctions & Updates: https://chat.whatsapp.com/INLXWQKETHU... – Join our exclusive WhatsApp group for koi auctions, business updates, and the latest from Ricky Stoddart. 🔹 Telegram Community: https://t.me/+T6vKpoKTVP9jYjlk – A place for all things koi! Connect with fellow koi keepers, ask questions, share experiences, and engage in a supportive community where everyone has a voice.