Fry

[Koiamania]

Is there a good source to show what the developing fry may turn out looking like based on what they look like now? website, books,etc. I know this is not an exact science and it depends on what the parents look like, etc etc etc etc but I am looking for basics. TIA

[PapaBear]

Was it a controlled spawn or a flock spawn? Pinning down the potential parentage would help a lot.

[Koiamania]

here is parents but there are all kinds of fry, white, white with black spots, yellow and white, orange, orange and white, black, black and orange, black and yellow, grey , some look goshiki, and others, some doitsu and some not
what kind of offspring will these produce

[koiboy472004]

Hello everyone!
I have about 20 koi of all sorts, not sure what kind they all are but I just love'em . On july 10-08 about a week ago my fish had a spawning frenzy,eggs everywere all over my Water Hyacinths , so I had this bright idea of trying to hatch baby koi I took an old 30 gal glass tank cleaned it real good and filled it with algea water from the same pond then put the water plants with eggs all over them in the tank then added an air stone and a small filter with a fine mesh bag around the water inlet. And PRESTO 3 days later, I guess about a couple of thousand 1/4 inch baby koi stuck all over the glass , I thought COOL I'm the proud parent of a bunch of baby fish!...? The baby koi are eating well there green algea and some finely ground up koi food so things are going real good so about 4 days later my fish spawned again I took the first water plants out and put new plants in the same tank with more new eggs on them and PRESTO again another couple thousand baby koi stuck to the glass . GREAT now I have twice as many first batch about 3/8'' long and new ones about 1/4'' long I thought this was really neat until I saw one from the first batch eating one of the new ones. I never thought there would be that much differance in size were there would be a problem. Should I just let them continue or is there a way to solve this ANY HELP APPRECIATED .

[Koiamania]

Just let them eat each other unless you can house multiple thousands of koi. They grow fast and pretty soon you are going to wish you didnt have so many. I am trying to convince friends to build ponds in their back yards so i can give some away. I know the pet store will take them and maybe give me a few cents for them but I know they won't end up in good homes.

[Koiamania]

You also have to start thinking about a bigger home for the fry. 30 gallons isnt going to cut it. I would try to get them outside in at least a few hundred gallons for now. They produce a lot of waste and the fry will begin to die off in 30 gallons.

[PapaBear]

My opinion hasn't changed from when you posted the parents set you proposed, so here it is again.
..."I wouldn't even try to save anything that didn't look like Sanke or Kiko, and even then they'll be more "interesting" than anything else long term..."

[PapaBear]

If you want to do this in 30 gallon tanks you'd better get about 30 of 'em... They'll be dieing off in huge numbers real soon, so between the water poisoning them and the tobies chowing down on sibling sushi your population problem will take care of itself real soon. Get a bigger tank (LOTS bigger), get plenty of air going in, separate the tobies from the rest, and start tossing anything that has missing or defective body parts asap. Do that and you might have a few survivors.

Quote: Originally Posted by koiboy472004 Hello everyone! I have about 20 koi of all sorts, not sure what kind they all are but I just love'em . On july 10-08 about a week ago my fish had a spawning frenzy,eggs everywere all over my Water Hyacinths , so I had this bright idea of trying to hatch baby koi I took an old 30 gal glass tank cleaned it real good and filled it with algea water from the same pond then put the water plants with eggs all over them in the tank then added an air stone and a small filter with a fine mesh bag around the water inlet. And PRESTO 3 days later, I guess about a couple of thousand 1/4 inch baby koi stuck all over the glass , I thought COOL I'm the proud parent of a bunch of baby fish!...? The baby koi are eating well there green algea and some finely ground up koi food so things are going real good so about 4 days later my fish spawned again I took the first water plants out and put new plants in the same tank with more new eggs on them and PRESTO again another couple thousand baby koi stuck to the glass . GREAT now I have twice as many first batch about 3/8'' long and new ones about 1/4'' long I thought this was really neat until I saw one from the first batch eating one of the new ones. I never thought there would be that much differance in size were there would be a problem. Should I just let them continue or is there a way to solve this ANY HELP APPRECIATED .

[koiboy472004]

Thanks for your help, I have an extra 9ft x2ft kids easy set pool I think I'll use for the baby koi fry I hope will work I'll have to figure out what kind of filter I have to use, I'll take the advice let them do the survival of the fittest except for taking out the extra big ones that they call tobys, and when they get big enough i'll have to do what they call culling and get rid of the plain the ugly and the deformed . Then hopefully save a couple unique ones for me, And sell the rest real cheap .or give away what I can, we'll see what happens !!!. Maybe I'll have second thoughts on doing this again. ( Thanks Again )