How do you NOT breed a guppy?
 

Guppies are my favourite freshwater fish. I have a 12 gallon tank, and I want to fill it with as many guppies as possible ((without crowding them, of course)).
Problem is, I heard that as long as there is at least one male and at least one female, they'll breed. I don't want to breed them, though. I thought of just keeping all females, but I heard that most females are already pregnant. And I thought of keeping all males, but I heard they will fight alot.

So, basically, my question is, can I get guppies without them breeding, how, and how many could I get?
Thanks!

i agree with blue.....get all females.

some of the very fancy males are not cabable of breeding due to there g-fin being overly long these males cant breed but will still tryhttp://www.fishforum.com/userpix/729_guppy_2.jpg to like this...

well the choice is up to you.

If you get all males there will be some agressive behavior
if you get all females they might already be pregnant so you will be back on square one, but once they have given birth they will be, may i say, uprengnant, so i dont think they will have any more babies after that, but im not sure, i heard females can store sperm so i guess i would go with all males to be sure.

btw daisy that guppy looks really nice

Exactly.
An unfertilized female can and does use stored sperm from the previous mating if there´s no male around.

Short of putting 6" oscar in the tank, You will have to have a "bachelor pad". Females can be gravid even before you purchase them.

buying virgin females can be difficult even when there in two separate tanks at the store theres nearly always one male that manages to sneak in.
this can be a royal pain in the ass if your tying to breed a certain color.
males on there own will try and breed with other fish and fight amounst themseves whatever you do make sure that males do not outnumber females as the will be pestererd to death by the overly randy males this counts for types with the feathery g-fins too they still behave like males even if the deed is impossible all females is a good idea your rarely going to get virgins thogh,

Just stick to the males, if you have at least 10 then the fighting and nipping will be greatly reduced..I have tanks with just males and there is very little fin nipping