A specialized deep-type breeding case designed for growing and breeding beautiful medaka (Japanese rice fish). Ideal for outdoor use, this compact yet spacious tank helps ensure stable water conditions while providing a secure space for both fry and adult fish.
Large Capacity with Deep Shape (Approx. 1.3 Gal / 5L)
The deep design provides more water volume, minimizing temperature fluctuations and stress on the fish.
Raised Bottom Design
Helps reduce the effects of ground heat, offering a more stable environment for breeding.
Stackable & Space-Saving
Perfect for keeping multiple medaka breeds in a compact space. Stack up to 1 unit on M size (sold separately), or 2 units on L size (sold separately).
Dark Gray Color
Highlights the vivid colors of your medaka, enhancing their beauty.
Overflow Sponge Included
Prevents fry or adult fish from escaping and protects them from heavy rain. Great for outdoor breeding.
Tubing Port
Includes a hole for air tubing or other accessories.
Optional Add-On Space
The recessed base is designed to fit the separately sold "Best Bio Block for Medaka" for biological filtration.
Clear Sides for Observation
Easily observe the growth and activity of your medaka from the side.
Dimensions: Approx. 13.8 × 8.3 × 7.9 in (W35 × D21 × H20 cm)
Water Capacity: Approx. 1.3 US gallons / 5 liters
Set Contents: Breeding case, overflow sponge
Weight (when filled): Over 5kg
For outdoor ornamental fish breeding only.
Do not use with heaters, or in freezing conditions (may cause cracks).
Avoid using sharp gravel to prevent scratches.
Set on a flat, stable surface.
Not suitable for indoor use (may seep or leak slightly due to EPS material).
Periodically check for wear or aging of material.
Avoid placing near open flames or direct intense sunlight (use shade or netting if needed).
Do not use with rooted aquatic plants.
Rinse lightly before use.
Set in a shaded area that allows easy water changes.
Use soft substrate like soil, not rough gravel.
Clean using only water; avoid detergents or chemicals.