What Age?

[amylw1]

hi,

the guppy fry are just over 3 weeks old, when will i be able to tell what sex they are? and at what age is it ok for them to be put into main tank with guppies/tetras and 2 catfish?

 

[OldMan47]

Age has very little to do with when it will be safe to release your fry into the main tank. Instead try to look at your fry in comparison to the main tank occupants. If you have a few larger fish like adult angels of gouramis, you will need to wait until the fry are at least 2 or 3 cm long. If you have nothing but guppies in the tank, you can release the fry at a mere 1.5cm length.

 

[amylw1]

i have 2 guppies, 4 tetras and 2 catfish (smaller than guppies).

when can i tell what sex they are?

 

[OldMan47]

You should be able to sex the guppies when they are about 2 to 3 cm long. The time it takes to reach that size depends on many factors including feeding, water changes and temperature.

 

[amylw1]

ok. thank you.

managed to get some pics of them today, will add to site.