How to collect and sort crickets from breeding tank

[demon amphibians]

I just scooped them up in a funnel and poured them into the first bowl with small holes.
that separated the pinheads and smaller.
then I poured what was left into the bowl with medium sized holes and that let the mediums fall out.
and what was left were the adults.

I do this with my dubia as well. super fast and easy method. A bucket with holes in the bottom may be a little better because its harder for them to jump out.