I never actually considered using a breeding trap before; however, lately I've seen that they are pretty cheap and since it could take a little longer than I expected before I can get my breeding tank set up, I was wondering if anybody could give me some tips on breeding traps... is plastic better or netting? and how big should they be? and also, can one raise fry in them or is it better to remove the fry as quickly as possible? I've also heard people say that when they put their heavily pregnant fish in the breeding trap, it will give birth pretty soon. is that because of the extra stress or because it feels safe from the other fish?