Very Quick Question...

[timmystood]

Are guppies schooling fish? - Should they be kept in more than 1 or is a single guppy ok?

 

[Annastasia]

It's possible to keep a single Guppy, but they'd much prefer company over being alone. They aren't a schooling fish, strictly speaking, but they like to be with others of their own kind.

 

[timmystood]

OK thanks Anna - you where just the person I was hoping would answer! What if their kept with their own fry? Would that be OK? - there 3 weeks old

 

[dwarfgourami]

As long as the fry have somewhere to hide; at 3 weeks they're still small enough for "accidents" too happen. And remember that once they get sexually mature (within a few months), these critters have no incest taboo, so they will breed with anything in sight.
Another thing I have found (slightly offtopic) is that guppies socialise quite well with platies; they seem to be close enough in behaviour to behave as part of the same gang. Whereas the platy I kept alone with a group of cories got seriously confused in his behaviour; his need to socialise was very strong, but it led him into behaviour that simply was not appropriate

 

[smurfyy_2k3]

And remember that once they get sexually mature (within a few months), these critters have no incest taboo, so they will breed with anything in sight.

erm by six weeks these fry will mature

 

[Tokis-Phoenix]

And remember that once they get sexually mature (within a few months), these critters have no incest taboo, so they will breed with anything in sight.

erm by six weeks these fry will mature

It varys, most of the time its 3months old that they are sexually active- basically you can tell though when the males become apparent in the group(as all fry appear female when born), the females will become sexually active shortly afterwards most of the time. Generally speaking you should separate the males from the rest of the group as soon as they start becomming apparent.