Originally Posted by mmandajade
since the roaches are nocturnal and the frogs diurnal, they may not really interact much at all.
Actually, if wanted to harass or eat a frog, I'd do it at night, when the frog is asleep. The 'nocturnal/diurnal noninteraction thesis' is a non-starter.
I'm assuming someone will be along with an idea for a food trap (maybe one with a sticky trap as part of it). Until then, I would work on securing that top. If a roach can get in, a frog can get out. (Edit: Oh, I see you said you fixed it already. You had the good idea before me.