Were new to tropicals, weve had cold water fish for years though. Yesterday we added our last three fish to the tank, they are balloon mollys, two hours later one gave birth! Some got eaten sadly but we rescued five, bagged them, floated it and dashed to the pet shop for a hatchery and fry food. Today i nipped back to the petshop as they had sold me two male mollys and one female and the males were chasing her a bit. So i got two more females. Alls fine but two guppy fry have snuck into the bag!!!! Ive put these with the molly fry. So how long do i keep them, i cant possibly keep them all and wheres best to advertise once theyre big enough? Any help would be great, thanks Helen