Home › Koi Care Guide › Koi Pond Water Quality Koi Pond Water Quality: The Complete Guide to pH, Ammonia, Nitrite and Nitrate By Giovanni Carlo Bagayas | Published: June 2026 | 15 min read Regular water testing is the single most important habit in koi keeping. Test at minimum once a week — more […]
Koi Pond Water Quality: The Complete Guide to pH, Ammonia, Nitrite and Nitrate Read More »
Home › Koi Fish › Koi Fish Diseases Koi Fish Diseases: Symptoms, Identification & Treatment Guide By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer The most common koi diseases are white spot (Ich), dropsy, anchor worm, fish lice (Argulus), gill flukes, ulcers, fin rot, and
Koi Fish Diseases: Symptoms, Identification & Treatment Guide Read More »
Home › Koi Fish Varieties › Goshiki Koi Goshiki Koi: Complete Guide to the 5-Color Koi Fish (Care, Types & Facts) By Giovanni Carlo Bagayas | Updated: June 2026 | 12 min read A champion-quality Goshiki koi showing the classic five-color pattern: white ground, bold red Hi, and blue-black Asagi netting. Photo: Polo Nippress. Quick
Goshiki Koi: Complete Guide to the 5-Color Koi Fish (Care, Types & Facts) Read More »
Home › Koi Pond › Indoor Koi Pond Indoor Koi Pond: Complete Setup Guide (Cost, Size & Tips) By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer Yes — koi can thrive in indoor ponds with proper setup. The non-negotiables: 500 gallons minimum (1,000+ ideal), 3
Indoor Koi Pond: Complete Setup Guide (Cost, Size & Tips) Read More »
Home › Koi Breeding › How to Breed Koi Fish How to Breed Koi Fish: Complete Step-by-Step Guide By Giovanni Carlo · Koi keeper & breeder, Giobel Koi Center · Updated June 9, 2026 Quick Answer To breed koi fish: (1) select healthy parents aged 3–6 years with desired traits, (2) condition them with high-protein
How to Breed Koi Fish: Complete Step-by-Step Guide Read More »
Home › Koi Fish Varieties › Benigoi Koi Benigoi Koi: Complete Guide to the Deep Red Koi Fish By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer Benigoi (緋鯉, “scarlet carp”) are single-colored, non-metallic red koi from the Kawarimono group — prized for the purity, depth,
Benigoi Koi: Complete Guide to the Deep Red Koi Fish Read More »
Home › Koi Pond › Koi Pond Design Ideas Koi Pond Design Ideas: 12 Styles for Every Budget & Space By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer The 12 best koi pond design styles are: Japanese garden, natural rock, waterfall, raised, formal/geometric, minimalist, cottage
Koi Pond Design Ideas: 12 Styles for Every Budget & Space Read More »
Home › Koi Fish › Bloated Koi Fish Bloated Koi Fish: Causes, Diagnosis & Treatment Guide By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer A bloated koi fish is most commonly caused by dropsy (fluid retention from organ failure), swim bladder disorder, or constipation. The
Bloated Koi Fish: Causes, Diagnosis & Treatment Guide Read More »
Home › Koi Care Guide › How to Tell If a Koi Fish Is Male or Female How to Tell If a Koi Fish Is Male or Female: 6 Reliable Signs By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer The 6 most reliable ways to
How to Tell If a Koi Fish Is Male or Female: 6 Reliable Signs Read More »
Home › Koi Care Guide › How to Get Rid of String Algae in a Koi Pond How to Get Rid of String Algae in a Koi Pond (For Good) By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer To get rid of string algae: (1)
How to Get Rid of String Algae in a Koi Pond (For Good) Read More »