Many thanks for all your replies, I am off work now until Wednesday so will keep a close eye on them, I have read they normally give birth at night is this right?? As there are 3 pregnant platies am I best to keep the fry in a net incase the other two platies eat them?? Until they have all given birth and them put the three mums in my 350 litre big tank and leave all the fry in the 60 litre tank?? Thanks!