Do guppies need a special tank for breeding ? From today morning i have being notice that my 1pair of snakeskin and 1pair of moscow guppies are mating and formed pair with each other in my show tank there r about 8 guppies and 8 mollies in my tank from which 4 of them r breeding frm morning do i need to shift them in another tank or keep them in the same tank, 4days age 2of the mollies have given 8 babys in the same tank but i have shift them into a 1litre glass bow.

1 litre is not big enough, that size container will not encourage good growth in your fry. If that is all you have available i would leave them where they are and hope they avoid being eaten.

If you have plenty of hiding space in the show tank some will survive.

a
Alive for now....sorry but 1 litre is just not big enough for the amount of fry you are going to get.

They will end up stunted or die unless you get something bigger.