2 otocinlus catfish
2 male guppies
1 juvenile male guppy
7 guppy fry (different ages)
1 molly fry
and on the 27th im adding atleast 15guppy fry (not sure how many there are)which will be 2 weeks old by then do you think its fine to add the fry?
If the fry are too small, they will get eaten up. Like Loha said, wait a while and then you can add the fry when you think they can hold their own in the tank with the adult fish.