A guide to starting medaka sales: choosing platforms, setting prices, packaging, shipping, buyer communication, and building a sustainable breeding business.
要点总结
A guide to starting medaka sales: choosing platforms, setting prices, packaging, shipping, buyer communication, and building a sustainable breeding business.
To start selling medaka, you must first understand the industry's basic structure. Medaka distribution breaks down into three main formats: retail wholesale, event sales, and online sales. For beginner breeders, online sales is particularly recommended.
Retail wholesale offers a stable sales channel, but unit prices are low and bulk production is required. Event sales allow for higher prices but face challenges with frequency and booth costs. Online sales, by contrast, can be conducted from home with minimal initial investment, making it ideal for those starting as a side business.
A crucial point to understand before starting sales is that medaka are living organisms. This creates unique challenges distinct from regular merchandise: inventory management, shipping timing, and seasonal breeding cycle fluctuations. Summer heat and winter cold require different approaches to care, breeding, and shipping, making year-round planning essential.
For breeding medaka for sale, strain selection heavily impacts profitability. Beginners should target F1 to F2 generations of established popular strains. While the latest high-priced strains face intense competition and require keen selection skills, established popular varieties (Mikino, Yangguifei, Tricolor, etc.) have stable demand and relatively easy breeding.
Ensure your breeding setup includes at least 3-5 containers for breeding stock and 5-10 for fry. Styrofoam boxes and plastic tubs are affordable and practical. Outdoor cultivation is standard, but positioning must account for sunlight, water temperature, and predator protection. Installing nets to prevent rainwater infiltration and protect against cats and birds is essential.
Sales permits vary by annual sales volume and scale. Many side businesses don't require official animal dealer registration, but confirm with your local government. Also, maintain accurate species identification and records to avoid confusion with invasive species like Gambusia.
Stable revenue from medaka sales requires planned breeding and strict selection. Breeding season runs spring through fall (water temperature 18°C or above), with parent conditioning directly affecting spawn quantity. High-protein foods (frozen bloodworm, brine shrimp) and adequate sunlight promote spawning.
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Collect eggs every morning and manage them in separate containers away from parents. Stable water quality (pH 6.5-7.5) and temperature (around 25°C) are critical for high hatch rates. Methylene blue fungal prevention is effective but requires careful concentration control.
Begin selection when fry reach approximately 1cm. Sort by strain characteristics (body color, shape, fin form) into three categories: sale-ready, breeding stock, and cull. The critical factor is uncompromising selection. Selling substandard individuals damages your reputation, so cull or relegate non-standard specimens to breeding stock. After initial selection, separate by grade and repeat selection as they grow.
The four main online sales channels are Mercari, Yahoo Auctions, specialized marketplace apps, and your own website. For beginners, starting with Mercari is easiest—10% listing fees, anonymous shipping, and large user base are key advantages. However, intense price competition makes photo quality and descriptions critical for differentiation.
Price is determined by "market rate × quality." Even the same strain shows 2-10x price variation based on body shape, color intensity, and size. Research market rates weekly and account for seasonal fluctuations (spring peaks, fall declines). Beginners should price 10-20% below market rate to build reputation.
Effective listing strategies include offering pairs, juvenile assortments, and parent-plus-fry bundles tailored to customer needs. Including lineage info (F1, F2, etc.) and parent photos builds credibility. Clearly state shipping schedules and bad-weather policies upfront to prevent disputes.
Shipping live medaka is particularly challenging; quality directly impacts customer satisfaction and ratings. The standard method involves placing an oxygen-filled plastic bag in a styrofoam box, then protecting it with a cardboard outer box.
Follow these packing steps: First, fast the medaka from the day before to prevent water quality deterioration. On shipping day, seal them in thick plastic bags (double-layered recommended) with 1/3 water, medaka, and 2/3 oxygen, securing tightly with rubber bands. Line the styrofoam box with newspaper, place the sealed bags, fill gaps with newspaper, and stabilize. Use ice packs in summer and hand warmers in winter to minimize temperature fluctuation.
Always specify next-morning delivery and avoid shipping Thursday through Sunday (to minimize weekend delivery delays). Packing materials cost approximately 200-400 yen per box; prioritizing quality protects long-term profits when accounting for DOA (dead on arrival) guarantees.
Clarify DOA policies in advance. Industry standard is "full refund or replacement upon photo proof within one hour of arrival," but consider recommending unboxing videos to prevent unreasonable claims.
Sustainable medaka revenue requires two pillars: acquiring repeat customers and managing strain cycles—not just one-off sales.
Repeat business requires consistent quality and attentive communication. Build relationships through post-shipment follow-ups, care advice, and advance notice of upcoming stock. Exclusive presales and discounts for past buyers build a loyal base. Public care documentation on Instagram and X is also effective for brand-building and marketing.
Strain cycle management means planning different strain breeding and sales throughout the year. Adjust seasonal needs and capacity: spring for new strains, summer for standards, fall for next year's breeding stock. Overreliance on single strains increases risk from market swings or breeding failures, so maintaining 3-5 parallel lines is recommended.
Finally, set realistic revenue targets. Side business: 30,000-100,000 yen monthly; even full-time operations typically earn 100,000-300,000 yen monthly in year one. Success as a medaka breeder comes not from chasing short-term profit but from consistent quality and trust built with customers.