To be honest, mine hate the egg traps.
I get almost no eggs in the traps, I’ve counted nine so far.
If I just put a clump of java moss in the corner I can usually vac out a bunch of eggs every three days.
I pick up moss slowly and keep it over the place it was, transfer it to the fry tank, vac the area where it was, an replace with a fresh clump. This has been my personally successful method, which is a bummer, because I was excited about that egg trap. Maybe it works better in a bare bottom.