So now all my fry are quickly growing that I feed them shrimp and got them a heater, but the little brother Skimmpy still wont grow. All the others that were small, Isabelle (Named after mother), Fantasia (named after plattie), Jasmine (named after the Aunt) all grew to the guys size and are passing them out. And Sampson (named after step father) is getting color of his top fin. But the others arent. Why is that? Also they have diffrent tail shapes. Why is that as well. Some are big and some juts go straight out, and another barley grew.
Speeding up growth/color of fry, and other ?'s
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snowyangel
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As it occurs with cats and dogs, fish can have "runts" in their litter too. These runts are smaller from the beginning and grow slower but still will live healthy lives and grow to adulthood. I've had plenty of runts, but give them a chance and they'll catch up. 
Most you can do is make sure he's get's enough food b/c biggers ones willl push it out of the way. As for tail types, guppies have many tail strains, like bettas. They can have big wide tails called "delta" , or long skinny tails called "ribbon", even a tail that splits into two called a "lyretail". Here's some of my males to show u the tail types:
DELTA TAIL
Double LYRETAIL:
a rounder, shorter tail:
hope I've helped.....
Most you can do is make sure he's get's enough food b/c biggers ones willl push it out of the way. As for tail types, guppies have many tail strains, like bettas. They can have big wide tails called "delta" , or long skinny tails called "ribbon", even a tail that splits into two called a "lyretail". Here's some of my males to show u the tail types:DELTA TAIL
Double LYRETAIL:
a rounder, shorter tail:
hope I've helped.....
wolfie33
Fish Fanatic
i think like snowy angel said there are runts to every litter as there are to every batch of fry!
All the books i have on keeping or breeding tell you to cull the weak smaller fish but i dont feel easy doing this and i tend to give the smaller fish a chance to grow.
The only thing i could reccomend is if you have a seperate breeding tank where your fry are then after about a month or so seperate the obviously smaller fish and put them in either another tank or a container in the breeding tank and feed up on a veriety of very rich foods and if they are going to survive this will certainly help them on there way.
I think the reason why so many books call for the culling of underacheiving fish(runts) is it can be bad for the future baby's of that fish and there fish and so on,also the underachievers may well have health problems from day one and will be more prone to illness than the healthy ones.
But with the amount of treatments available now at very low prices there is much less chance of this happening.
NEVER treat a fry tank with any of these though wait untill the fish are fully developed before you do this!
All the books i have on keeping or breeding tell you to cull the weak smaller fish but i dont feel easy doing this and i tend to give the smaller fish a chance to grow.
The only thing i could reccomend is if you have a seperate breeding tank where your fry are then after about a month or so seperate the obviously smaller fish and put them in either another tank or a container in the breeding tank and feed up on a veriety of very rich foods and if they are going to survive this will certainly help them on there way.
I think the reason why so many books call for the culling of underacheiving fish(runts) is it can be bad for the future baby's of that fish and there fish and so on,also the underachievers may well have health problems from day one and will be more prone to illness than the healthy ones.
But with the amount of treatments available now at very low prices there is much less chance of this happening.
NEVER treat a fry tank with any of these though wait untill the fish are fully developed before you do this!
SkimpySnowyzMom
Fishaholic
I have a runt albino female guppy who came up from a runt fry and she's even now way smaller than her sisters...she's also turning a pale peach colour--- 
However I love her, she's very friendly. She has just taken AGES to grow to half the size of her full grown sisters! Maybe she won't breed. One batch of Snowy's fry a few months back had alot of tails with kinks in them-yep kinky fish, they grew up that way too. Sometimes a batch just doesn't work out right and then the next batch is really healthy. It's interesting, to be sure. I'm sure you'll get more runts. 
Some males and females just seem to genetically mix really well and have excellent babies, others...not so good.
SnowyZMom B)
However I love her, she's very friendly. She has just taken AGES to grow to half the size of her full grown sisters! Maybe she won't breed. One batch of Snowy's fry a few months back had alot of tails with kinks in them-yep kinky fish, they grew up that way too. Sometimes a batch just doesn't work out right and then the next batch is really healthy. It's interesting, to be sure. I'm sure you'll get more runts. Some males and females just seem to genetically mix really well and have excellent babies, others...not so good.SnowyZMom B)
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