和唐內

Watonai Goldfish Care Guide | Complete Guide to Raising This Historic Three-Tailed Wakin Variety

Watonai is a uniquely Japanese goldfish variety born from crossbreeding Wakin and Ryukin, characterized by flowing three-lobed or four-lobed fins and a hardy body type. A complete guide covering tank environment, setup, feeding, and disease management for properly raising this historic breed.

Goldfish Show Judging Criteria and Guide to Raising Award-Winning Specimens | Evaluation Points for Body Shape, Markings, and Swimming

Explanation of judging criteria evaluated at goldfish shows. We introduce evaluation points for body shape, markings, swimming behavior, and coloration, as well as practical methods for daily management and selective breeding to raise specimens appreciated by judges.

A Guide to Visiting Goldfish Exhibition Shows | Spectating Etiquette, Highlights, and National Event Information for First-time Visitors

A guide to enjoying goldfish exhibition shows as an audience member. Explains judging criteria, major national competitions, and spectating etiquette for first-time visitors.

Complete Guide to Smart Devices & IoT for Goldfish Tanks | How to Streamline Management with Automation

Learn how to streamline goldfish tank management using smart devices and IoT equipment. We introduce how to choose and install water temperature sensors, automatic feeders, smart plugs, and cameras.