Variants and stock state stay visible near the purchase controls.
PRESALE Mermaid Blue Japanese Medaka — Breeding Pair (2 Fish) — Est. Ships Nov 9
$189.00
Sale price
$189.00
Regular price
Collector details
Know the listing before it reaches your tank.
Documented origin, breeder, traits, photography notes, and fulfillment guidance stay close to the purchase decision.
Full strain profile
PREORDER — Estimated shipping November 9, 2026
These medaka fish are not currently in stock or ready for immediate dispatch. November 9 is the estimated ship-out date, not a guaranteed arrival date; shipping requires import arrival, safe acclimation, fish health checks, suitable weather and available carrier service.
Live-animal shipping (U.S.): UPS 2-Day — $35 per box; UPS Next Day — $60 per box. Charged separately at checkout; live animals are not eligible for ordinary/free dry-goods shipping. Shipment is subject to animal health, suitable weather, carrier service and Aquaphoria’s Shipping & DOA Policy.
About this fish / visible traits
Mermaid Blue is a blue-toned ornamental Japanese medaka variety. Shade, reflective finish and markings vary by individual and lighting; the advertised pair is subject to actual sex verification.
Detailed traits & researched lineage
- Identifying traits: Blue-toned head and back, dense individual-scale glitter (lame), and broader fin expression are reported for the Mermaid Blue trade line. Individual shade, sparkle and fins vary.
- Reported development: Secondary Japanese hobby accounts discuss Mermaid Blue in connection with Fromage, Reiwa-family and Neptune breeding work. These are historical attributions, not a verified parent-by-parent record of Aquaphoria's fish.
- Breeding expectations: The exact genes, a fixed blue pattern, fin inheritance, adult grade and percentage of matching offspring have not been established. Male and female selection remains subject to actual fish sexing.
Historical strain information is for identification; it is not a certified pedigree of individual fish. Representative photographs may differ from the exact animals supplied.
Medaka arrival and acclimation
Prepare a cycled aquarium or suitable pond with stable water, gentle filtration and secure cover. Receive live fish promptly, minimize temperature and water-chemistry shock, and transfer using fish-appropriate acclimation without pouring transport water into the tank. Dim the lights, monitor closely for stress, quarantine new arrivals when practical, and resume light feeding after the fish settle.
Temporary online ordering hold: This listing is held at zero available online while Aquaphoria reconciles overlapping marketplace inventory. This does not mean the entire physical strain stock is sold out. Contact Aquaphoria to confirm availability. Do not reserve the same fish twice across channels.
Mermaid Blue Medaka — Pre-Sale
Offering: one pair (2 fish). Price: $189 per pair.
Store display quantity: the quantity available to order is counted in pairs (two fish per pair), not individual fish. The stock-list reference is 10 individual fish available to reserve across all sales channels; do not treat marketplace counts as separate physical fish. These are pre-order units, not fish that are currently acclimated and ready to ship.
Source: Upcoming Japanese medaka import.
Expected fulfillment: The estimated shipment date is November 9, 2026, not a guaranteed shipment or delivery date. Shipments require arrival, safe acclimation, a health check, suitable weather, and an eligible live-animal carrier service.
Images: Authentic fish images are included for reference; individual live fish can vary.
Shipping & DOA: Please review Aquaphoria's Shipping & DOA Policy and the carrier options at checkout. Combined live-fish shipping depends on your order and destination.
Live-arrival & shipping
UPS 2-Day: $35 per box. UPS Next Day: $60 per box. Charged separately from product pricing; free dry-goods shipping does not apply to livestock. Dispatch requires suitable weather, healthy animals and eligible carriers.
Preorder: November 9, 2026 is an estimated ship-out date, not a delivery guarantee.
Live-animal orders follow Aquaphoria’s shipping and DOA requirements. Review the policy before ordering so timing, evidence, and arrival conditions are clear.
Review shipping policy →Questions before ordering? Contact Aquaphoria →
Acclimation & care
Prepare stable water and acclimation conditions before delivery. Use the listing description and Aquaphoria care resources for strain- or species-specific information.
Explore Aquapedia →Listing notes
Origin, breeder, lineage, traits, photography, and fulfillment labels appear only when the store data supports them. Unconfirmed fields are not presented as facts.
Aquaphoria stock and partner-fulfilled items are identified before checkout.
Shipping and care resources remain easy to reach when needed.