Well, I have just got my molly fish about two days ago. I have a 5 gal. tank with 3 males [2x guppy 1x molly] and a bottomfeeder. She is pregnant; you can see the dark gravid spot. When I brought my Molly home, I put her in the tank with the other fish but they were attempting to court her! I've been researching on the internet about how to take care of pregnant mollies and guppies and such. I have came out ith information that tells me that it can be harmful to the pregnant fish if she is in a small space (info recieved from http://www.guppies.com/ when I was researching on the guppies) in which this could happen "Premature conception – Your fry will be born with their yolk sack very visible and will look weak and fewer will survive – you may also see slower growth." I'm stressing!! Someone give me some logical, researched advice quickly before something bad happens to my molly please!