40 - Real Long Fin Yokihi - Medaka Rice Fish Eggs - Free Shipping

STRAIN SPECIFIC NOTES

We don't see a ton of RLF strains in the US, and this is an exceptional line. Please note that it can take up to a year before a long fin Medaka shows truly long fins, and they will continue to get longer as the fish age. It is expected that these will appear as normal Yokihi for the first 6 months of their life. 

HOW TO HATCH AND RAISE MEDAKA EGGS

Eggs will hatch within two weeks of receiving them, though most will hatch before then. They are most vulnerable in their first two weeks of life. I would suggest establishing a separate hatchery to reduce the change that these eggs are eaten by other fish. Adding live plants (I suggest Java Moss or something similar) to the hatchery is beneficial.

0 - 2 Days: There is no need to feed your freshly hatched eggs in their first couple days of life. They will still have egg yolk to feed on during this time, and will opportunistically feed on any Infusoria brought from live plants. Personally,  I also culture a small amount of Daphnia in my hatcheries. They offer a water stable food source; the parents are too big to be eaten, but their newly hatched Daphnia babies are perfect for developing fry.

3 - 7 Days: This is a critical time in the Medaka's life. It is important that the fish are fed everyday during this stage to prevent stunting growth, and avoid losses. Even crushed flake food once a day is sufficient, though more is encouraged. They will take freshly hatched BBS as a first true meal around day 3.

8 - 14 Days: The fry are still fragile, and strong water current should still be avoided. Though at this point a missed feeding is not likely to cause losses.

15 - 30 Days: After the first couple weeks they are about as easy as raising a Guppy fry, and the care is very similar. They will continue to grow stronger, and when approaching the 30 day mark, the faster developing fry can easily stand their own against other adults.