To force a bromeliad to bloom, like Guzmania sp., cut an apple into several pieces and place around the base of the plant and cover it with a brown paper bag for 48 hours. It should bloom in 2-3 months. Make sure to remove the apples before they rot and repeat the procedure as necessary. Some hobbyists say that the yield is greater and the culture lasts longer. Add a small block of tree fern fiber in your springtail culture.
Springtails tend to gather in the block which can be easily transferred to the tank for feeding.
Place a container with beer, but put some kind of a mesh screen so that the frogs won't fall in. Another good way to sex younger, juvenile frogs is by looking at their snouts. Toepads are only good on subadult frogs and adults, so using the snout methods is better for juveniles. Males tend to have closer eye separation than female, making their snouts narrower. Females, on the other hand have a wider eye separation, making their snouts wider.