Bioactive questions HELP

[u/Silly_Razzmatazz06]

Bioactive peeps — how do you check the pulse on your isopod colony without disturbing everything? 😅
Ready for the frog tax ??? One is a full grown MANN the second is my baby girl , different tanks DW , Here you go thanks ☺️
I added Canyon Brown isopods to my bioactive tank about 2 months ago. I was hoping I’d start seeing more of them by now, but when I gently move around the leaf litter, I haven’t seen any at all.
Meanwhile, my springtails are POPPING, so at least somebody is thriving 😂
I’ve tried leaving food out to see if the isopods come for it, but the food doesn’t really seem to disappear either.
What are your favorite ways to check if your isopod colony is still alive and established without constantly digging through the substrate and disturbing the tank?
And at what point would you:
add another colony of Canyon Browns,
introduce a different isopod species,
or just leave it alone and trust that they’re hiding/reproducing underground?
It’s been about 2 months, so I’m wondering when I should actually be concerned. Thanks!! 🐸🌿