Medaka Fish Breeding Expert Method | Japanese Rice Fish Breeding Guide | Serendib Aquatics

[@halo2something]

friend of mine is keeping them outside in small pond, sometimes top level gets some ice, so they can tolerate wide ranges of temperatures, you won't make them breed in winter outside but at least you can keep them in unheated aquarium inside - big savings on energy

[@SerendibAquatics]

Thank you for share your knowledge.

[@Bidenmytime]

Mine have survived winters with 5 plus days of 10 degrees F weather

[@exoticwater]

I personally feel it is better this way as they become more hardy, have a break from breeding and also produce healthier offspring. This is my experience 😊

[@SerendibAquatics]

@@exoticwater ok. Thank you.

[@indikasilva7177]

Wow. Another great video. Small but nice fish. So informational video and definitely helpful for fish breeders.

[@SerendibAquatics]

Thank you. Indika

[@PasinduKw]

Beautiful fish and amazing techniques! Your breeding setup is inspiring. Can't wait to try my hand at raising Medaka fry.

[@SerendibAquatics]

Thank you. Go ahead with medaka. They are amazing fish. Good luck !

[@greenmachinesweden]

27-30c!!!. Please tell me where in Japan that is the situation year round.

[@SerendibAquatics]

@@greenmachinesweden actually it may be not there. But they will live well in my tank

[@greenmachinesweden]

@SerendibAquatics And they do fine in my unheated tank that goes down to 5c in winter. However they do not breed during that period. In summer they go outdoors in a black tub that goes up to 22-23 degrees in peak of summer. Then they breed like crazy. I cant help to wonder what keeping medaka in unnatural hot water does to the metabolism and life span? There are studies on koi and it affects life span greatly.

[@SerendibAquatics]

@greenmachinesweden brother i agree with you. Medaka will thrive in asian contries that naturaly have high temperatures also. Yes as you mentioned that high T may be a cause of reduce lifespan of the fish. According to my expeeience medaka can easily tolerate wide range of water parameters.

[@danielthompson3205]

Mine are outside (in shaded shade house) Temps are reaching 35, they are in a planted tank no filter or bubbler. - just like in a standard pond or very slow moving creek -nirth Queensland aus

[@greenmachinesweden]

@danielthompson3205 my medakas is outdoors in summer as well. Outdoors may mean different conditions to us. The water rarely go over 20 degrees. In winter I move them indoors. This year I missed one by misstake. I do not dare to move it in now that the temperature difference is that big. We have had two cold spells below -10. Approximately two weeks each. After the cold spell I remove 10 cm of ice, do not want it to melt in the tub stressing the fish with 0 degree melting water. It is still alive and thrives, althou a little slow and obviously not breeding. I am not supriced. They live naturally in Rice fields in Japan which also gets frozen over in winter. I do not question that they can tolerate 30c, just that it should be needed for breeding. My fish breeds the best in late summer at 15. By that time they do not need that much protein and will not eat that many roe or babies. Most of the late summer fries survives without me doing anything.

[@Spacenow869]

It is actually not strictly warm water fish, i Japan there are kept in outdoor porch containers year-round. That is why they are excellent pond fish.

[@SerendibAquatics]

@@Spacenow869 Agree. They are stable with more range of temperature. And easy to keep and breed.

[@ninbunnie-1]

What wild shrimp is that at 6:25?

[@SerendibAquatics]

Yes.they tolarate it well. Breeding continue as well

[@ninbunnie-1]

@@SerendibAquatics But what kind of species is that wild shrimp? Could it be a Atyaephyra desmaresti?

[@SerendibAquatics]

@@ninbunnie-1 they are caridina simoni

[@ninbunnie-1]

@@SerendibAquatics Thank you :)

[@koloheboi808]

What were those long nose fish swimming with the rice fish? They looked very interesting... thank you!

[@SerendibAquatics]

@@koloheboi808 they are platinum halfbeak fish. Whole breeding vedeo is in my chanel already. It has been an interesting vedeo. Please watch it

[@koloheboi808]

Found out they're halfbeaks

[@SerendibAquatics]

@@koloheboi808 they are very beautiful. Try to take some of them.

[@koloheboi808]

@@SerendibAquatics sweet... thanks!

[@SerendibAquatics]

@@koloheboi808 🙏

[@PeppersnGlowworms]

They are just the perfect pet fish for me! I started with Oryzias woworae, before I finally got the "proper" Japanese ones...

[@SerendibAquatics]

Yes, they have more than 200 varities. Love to see them in ponds. Much more colours show in dark back grouds.

[@afifahzulkefli]

I have a small tank set up for the eggs, but what do you do once a few of them hatched but some of them haven’t? Do you transfer the fry to a different holding tank and wait for other eggs to hatch separately?

[@SerendibAquatics]

No.no. keep them in same tank until 3 or 4 days. Feed them very small am9unt of egg yolk solution. After day 5 you can transfer if you want. I put eggs 3 days into same tank. Next 3 days to a another tank. It is easy.

[@afifahzulkefli]

@@SerendibAquatics i see. do you do small water change to this fry tank until day 5 when you move them? i guess i worry the feeding would contaminate the egg that hasn’t hatched.

[@SerendibAquatics]

It is according to the fry count and amount of egg yolk you put to the tank. Purpose of water change in fry tank is maintain the water quality. Most of the time when we use egg yolk solution , remain foods produce ammonia and waste products. When we do daily small water changes it is better to maintain water chemistry of the tank. I also feed them but contamination may be their. Tanin contain water give some protection and low dose of food may be effective against contamination.

[@garrystephenson4119]

I find the cooler temperatures somewhat better for keeping and breeding. In the UK we'd keep them outside in small ponds or rain barrels without a heater and they survived ice and snowy conditions well. Temperature: 64.5-71.5 °F (they tolerate a very wide range, but this is considered ideal)

[@SerendibAquatics]

Superb. Thank yoy for share your experience. Please share if you have any more.

[@berenicehickey9755]

I live in Singapore on the equator and they breed constantly in the high temperature....

[@AK1248]

Can you please share the website link that shows the different strains of medaka

[@SerendibAquatics]

I will try my best to find one site. Thank you

[@josepolanco1228]

Thanks for the info. Learning about them. Subscribed , supporting your channel from mine’s @Joy of fish keeping . Greeting from NY

[@SerendibAquatics]

Thank you brother.

[@dulithashanuja3674]

That's crazy ❤️😋

[@SerendibAquatics]

Thank you.🙏

[@adityaxd1628]

3:12 wt are the other alligator gar looking fishes

[@SerendibAquatics]

They are platinum half beak fish. I l put the breeding vedeo later. They are live bearers. Alredy have 40 plus babies at the moment. They are surface feeders most of the time.

[@jiangtao2990]

HI what are those fish with pointed head/beak? They are definately not rice fish!

[@SerendibAquatics]

They are platinum half beak. Very nice surface dwelling fish. They have Very unique sets of behaviours. I will update with full breeding guide. Now already i breed them.

[@tiernos6888]

Ty for this vid, really helpfull

[@SerendibAquatics]

Thank you.

[@rafaelsabado547]

how many days before the eggs hatches?

[@SerendibAquatics]

In rice fish it takes much more time to hatch. Day 4 to day 8 takes to hatch.

[@rafaelsabado547]

@@SerendibAquatics thank you 😊

[@justinkhoo870]

i have 4 of them , 2 males and 2 females . Ive seen the females wth eggs but i cant seem to find them and i never see babies even thought i have a well planted tank . What should i do ? and if i use your method by taking the females out , how do i know that the eggs are fertilised ? Thanks in advance 😄

[@SerendibAquatics]

Good. you confirmed that there are 2 males. If males are mature enough to spawn. At the time they lay eggs males will put sperms at the same time. Then when you see females with eggs alredy fertile. No matter take the females and collect eggs. But put all eggs into same water from same tank. And parameters should be same. Planeria and snails should not be in the hatching tank. Then after 5 to 8 days you will see fry.

[@Clevo89]

It snows in Japan.....

[@SerendibAquatics]

Did they tolarate extreme cold temperature ?

[@Clevo89]

@@SerendibAquatics Yes...plenty of keepers in Japan reporting Rice Fish swimming under a layer of ice. They hybernate and require little to no feeding during this time.

[@Clevo89]

@@SerendibAquatics kzbin.info/www/bejne/kH6liJWsgdymmKc

[@SerendibAquatics]

@Clevo89 thank you for the update bro. That means yhey tolarate extreme weather conditions

[@arijitpal166]

Can i keep rice fish outside in India? How hot they can handle?

[@SerendibAquatics]

In my outside tank temperature go upto 31 cecius some times. Still there are doing well. I think 26 to 31 is ok. But further temperature may not be good.

[@docborrego1]

I personally know people who have measured their water temperature as high as 35C/95F in the summer in California and they did just fine.

[@arijitpal166]

@@docborrego1 thank you ...

[@rashnashakya6810]

Sir breeding rice fish Can u tell me the ratio of male and female to breed ??

[@SerendibAquatics]

5 females for 2 males is very good.

[@rashnashakya6810]

@SerendibAquatics thanks for your information

[@SerendibAquatics]

It is pleasure.

[@berenicehickey9755]

Thanks!

[@sickonsundays]

they thrive just fine in green water and or dirty water.... i never do water changes on mine and they breed like crazy and thrive. they are hardy beyond belief.

[@SerendibAquatics]

Thank you for share your valuble experience with us.

[@JamesLuna11-14]

These are hardy fish you dont need an aerator for these fish

[@SerendibAquatics]

Yes correct. But i kept some more fish with them. To confirm the stability of tank I aerate all my tanks. 1) it will help to give proper oxygen into the water. 2) toxic gas ( ammonia and clorine ) will go out with it. 3) water movements give the active aquarium feeling. You are correct without aeration we can keep medaka rice fish

[@JamesLuna11-14]

@@SerendibAquatics Medaka keeper here as well greetings from asia

[@SerendibAquatics]

Superb. Thank you.

[@xKenn]

AI voice?

[@SerendibAquatics]

Thank you.

[@xKenn]

@@SerendibAquatics Is it AI voice though?

[@Amber8877]

I had 3 fry, they died after a week. I tried to make infusoria but failed. Then I gave them some boiled eggyolk but they didnt eat it. I know its nature but I'm still sad about it.

[@SerendibAquatics]

If we put very small number of fry into very large tank with much more plants without any other fish they will survive. If we separate 3 fry and try to feed them most of the time it will fail. If you have less number of fry. Below 10 please keep them in a large tank with much more plants they will grow slowly. Next time try it.

[@Amber8877]

@@SerendibAquatics thank you so much I will try next time.

[@Udeepa_wijerathne]

Wow

[@SerendibAquatics]

Thank you. Udeepa

[@Ingu.z]

AI or just TTS?

[@SerendibAquatics]

Thank you.

[@fansaaga4033]

I bought 6 hopefully there are females

[@SerendibAquatics]

Good luck ! Try different varities. There are more than 200 varients.

[@TOTALLY_A_CAT_PERSON]

They look like guppies but non live bearears

[@SerendibAquatics]

Yes when you see them from above it looks like guppy. But much more vary from side view. And behaviours.