hi, i`m new to all this and also a little confused,i have a silver molly that i am 99% sure is pregnant but all the advice i`ve been given says she will have a gravid spot, she has no gravid spot so the question i`m asking is "do all live bearers have a visible gravid spot ? my guppy had fry on new years day and she did have a gravid spot so i am aware of where it is. This may be a silly question but i really need to know. Thanks Shay