its dificult most times you make bactiria
i recently had to make some for my betta fry they didnt really pick up until i didnt need them anymore lol
all i did was put fresh lettice leaves in tank water nothing much also try leaves from out side oak would be best but its much better to grow micro worms much easier
yeh i only had 2 successes out of about 8 attempts i would rather have microworms instead though