I have a 30gal cycled planted tank, and just today I bought a pair of guppies. One is a male and one is a female. I didn't notice at the pet store, but the female has a very large belly and a black spot on her abdomen, which I've been told means she's pregnant. I would love for the fry to survive, since the tank is otherwise empty, but I've never bred fish before and I don't know how. Some people suggested a breeding net, but some said it can kill the mother fish and the fry. The tank has dwarf sag, anubias nana, amazon swords, and water wysteria. I don't have any other tanks I could move the fry to, unfortunately. Do you think its likely that the fry will survive if I don't purchase a breeding net and just let them swim free? The only other fish in the tank is the male guppy and the mother.