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are my fry safe?

This is a discussion on are my fry safe? within the Fish Breeding forums, part of the Advanced Freshwater Discussion category; --> How adorible!!! There is a lot of them! Congrats!! And the tank looks beautiful too!!...

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Old 05-02-2011, 08:14 PM   #11
 
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How adorible!!! There is a lot of them! Congrats!! And the tank looks beautiful too!!
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Old 05-08-2011, 12:10 PM   #12
 
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Originally Posted by alysalouise View Post
if they dont come to the top of your tank, put the food in a cup of tank water to let it soak so it will sink when you add it to the tank, after like 3 or 4 weeks you should feed them live or frozen foods to help them grow to be healthy happy fish

Hope this helps
I disagree on soaking the food... It will sink slowly regardless... Better for it to sink a little at a time, than all at once.

If they're not at the sorface, I'd go buy some sort of stem plant (stargrass, cabomba, hornwort, or something else bushy) and let it float on top of the tank. The fry will be attracted to it, and you can feed them there.

The ottos and snails won't bother your fry, and will help clean up the food. Keep an eye on ammonia and nitrite, since you apparently turned the filter off for a couple hours. (I would have stolen your wife/girlfriends/sister/etc pantyhose and slipped it over the intake)
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Old 05-16-2011, 02:36 PM   #13
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when the platy fry were born on april 16th, i immediately moved the mother, and the danios to the new 29 gallon tank, where they've been for the last month. today when i was about to do a water change on the 29 gallon, what do i see? more platy fry! she hadn't been in contact with a male platy since March 25th. very surprised to find more fry. now i'm trying to figure out what to do as far as moving fish around. luckily i have a few extra tanks that are empty, but just starting to cycle. maybe i'll add the danios to those two newer tanks, and buy some plants later tonight. then maybe i'll move the original batch of fry to the 29 gallon along with the new batch.
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Old 05-16-2011, 03:17 PM   #14
 
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I'd add the fry to the newly cycled tank- they have a tiny bioload.

You'll have hundreds of fry before you know it. Livebearers can save 'genetic material' from one mating, and give several batches of fry.
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Old 05-16-2011, 04:20 PM   #15
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how old are platies when you can start to be able to tell the gender? and also how old do they have to be to mate with each other?
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Old 05-16-2011, 04:50 PM   #16
 
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how old are platies when you can start to be able to tell the gender? and also how old do they have to be to mate with each other?


At about 2 weeks looking very closely i was able to tell with my fry by looking at the anle fin, but mine were in such a small tank it was easier to see. their getting big, your first batch, i think you can sex them now if you wanted
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Old 05-16-2011, 05:15 PM   #17
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i ended up putting the mother back in the 10 gallon tank with her month old fry. i wonder if she remembers the tank setup, and realizes she's returned and that those are her babies.

and even if i'm able to sex them now, how long can they remain together before they're old enough to breed again?
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Old 05-17-2011, 02:32 AM   #18
 
As for telling gender of platy fry - In my experience 2 weeks is way too early. I did have one fry (adult now) that I could see the gonopodium by the time he was about 1/2" long - not sure how old he was, because I obtained him as a fry from a pet store, but probably at least 2 or 3 weeks. Anyway, those that are able to see anal fin differentiation that early are known as "early maturing males," often don't get as large as later developing males, and are often sterile. The one that I have who matured early is only a little over an inch long now, though the others who were fry with him are 1.5 - 2" and have both fathered offspring.

Those who aren't "early-maturing," the anal fin differentiation is noticeable around 8 to 10 weeks, based on the fry I've raised . I have platy fry that are 9 weeks old today, and I am only now beginning to see differentiation of the anal fin.

As for age at mating - I've heard 3 1/2 to 4 1/2 months, depending on who you listen to. My 9-week-old fry were fathered by one or the other (or both) of my males who were born late September to early October last year. Since they are pregnant about 30 days, they were conceived 13 to 13.5 weeks ago, when my older boys were about 4 to 4 1/2 months old. To be on the safe side, I'd separate by gender before age 3 months - as soon as you are sure about gender would be a good time. Also, I have my 9-wk-old platy fry in the same tank as 9-DAY-old swordtail fry, and the little ones are fine. The 9-wk-olds aren't bothering them at all.
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Old 05-17-2011, 02:05 PM   #19
 
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i have a 2 and a half week old fry that i can tell if im looking real close to her that she is a she, and i have 3 other platy from maybe a month and a half old that i can tell their sexes, guess it all depends on how close your looking?
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Old 05-20-2011, 09:56 AM   #20
 
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i have a 2 and a half week old fry that i can tell if im looking real close to her that she is a she, and i have 3 other platy from maybe a month and a half old that i can tell their sexes, guess it all depends on how close your looking?
Just out of curiosity, are any of them obviously male? The problem with being able to "tell" that "she is a she" is that they all look female until the anal fin differentiates. I was certain my first platy fry was female until at about 8 - 10 weeks he started developing the longer, skinner anal fin. He's definitely male, and he definitely looked female when he was 2 1/2 weeks old, and 6 weeks old. Then again, my eyes aren't as good as they used to be - maybe with younger, sharper eyes I would have been able to tell at 6 weeks, too. Who knows?

With guppies, the females are identifiable before the anal fin differentiates, because of the gravid spot. Female platys also have the gravid spots, but with mine I can hardly see the gravid spots until they are at least half-way through their pregnancies. However, mine are pretty dark. With paler colored platys, you may be able to see the gravid spot and know it's female.
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