Medaka Kohaku Rice Fish
✅ Level: Easy — a robust and colorful nano-fish, ideal for small aquariums.
The Medaka Kohaku Ricefish (Oryzias latipes 'Kohaku') is an ornamental variant of the Japanese ricefish with an attractive red-and-white coloration, inspired by the classic koi pattern. Robust, active, and perfect for nano aquariums or outdoor tubs in the summer.
🐠 Animal specifications
| Max. length | ±4 cm |
| Temperature | 23–27°C |
| pH | 6.0–7.5 |
| Min. aquarium length | 40 cm |
| Diet | Omnivore |
| Min. school size | 6 pieces |
| Breeding behavior | Egg scatterer |
| Origin | Asia |
| Family | Adrianichthyidae |
| Difficulty | ⭐ Easy |
🏪 Collection & warranty
- Only available for collection at our store in Heinkenszand — this animal is not shipped
- Feel free to inspect the fish carefully in the store upon collection
- When collecting, feel free to ask for advice on care or the composition of your aquarium
✂️ Care
Keep in a school of at least 6. This robust species tolerates a wide range of water conditions and is also suitable for outdoor tubs in the summer. Feed fine flake food, micro-pellets, and regularly live or frozen food such as brine shrimp and daphnia.
🐠 Combination tip
Peaceful and ideal for nano aquariums, possibly together with shrimp or other small, calm nano-fish.
❓ Frequently asked questions
Where does the name Kohaku come from?
Kohaku refers to the classic red-and-white color pattern, known from koi carp.
How many specimens should I buy at minimum?
At least 6 pieces — as a schooling fish, it feels most comfortable in a group.
Is this fish suitable for outdoors?
Yes, Medakas are robust and can be kept perfectly fine in an outdoor tub in the summer.
Do you have another question? Feel free to visit the store — we are happy to help you make the right choice for your aquarium.
Why Aquarium Plant Shop?
- Many types of aquarium fish in stock.
- Pick up in store is possible 6 days a week.
- Livestock will not be shipped.