What is your setup and how are you looking for pods?that’s about how long I’d think I have to wait for my pod population is big enough, now that I’m controlling tank parameters again.
The types these fish eat are tiny, you will never see them even looking on the glass unless you light them up in the dark. They’re not like tigger pods you’ll see bobbing around. Only way I see mine are either lighting up the glass from the side (with tank and room lights off) or lighting up the water in the sump shining a flashlight straight into through the glass and then looking down through the water.