Female and Male Fry

[jacquelyn01]

Do female and male fry grow at the same rate. My fry are all different sizes and I'm wondering if the smaller ones are females and larger ones are males? Thanks all!!

 

[coconutman39]

there is no proof that this happens, but is possible. i would imagine half the bigger are females and half the smaller are males.

 

[Joby]

My biggest turned out to be a female and then the next biggest was a male so I guess not. I have varying degrees of size with mine too and its all mixed up as to what size is what sex. I have got half and half of each sex out of 20 surviving in the end.

 

[yeeviabetta]

Mine is male bigger first then the female. I mean not all male big first. I mean who big first. LOL

 

[Texaswoman]

Having fry different sizes is normal and common. It is thought some are more affected by the growth hormone the fry excrete during growth, so they stay smaller while ones that have a stronger immunity to it may grow faster. I have had to split my 3 week old spawn in half because I already had alot of fish that had reached a size they were trying to eat the smallest fry, who were still barely bigger than a small fry around 1 week of age. The biggest are now about 1/4 to 1/2 inch, and the smalles are about __ long. It is so weird to see them growing together. I think the majority of my largest ones have been male, but I have no results that point to one sex over the other as far as in growth rates.

 

[Joby]

Thankfully my differences in size didn't have the biggest trying to eat the smallest

Oh and Happy Birthday Texaswoman

 

[jacquelyn01]

Thanks everyone. I like reading what other people experience when it comes to raising fry. It's fun to compare w/others and learn from others. My babies will be four weeks old this sunday already. It's my first spawn too. If anyone has any other fun things to add about anything to do w/fry, please share! Thanks!