Are copepods & amphipods smart enough to...

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I have a pad in my refugium I use to prevent stuff from going into the tank and every week or so I like to clean it so I get consistent behavior from my skimmer and floss roller.
Its heavily populated by copepods and amphipods in the time its in the tank and I hate killing them all when I hose it off.
Is there any chance they're smart enough to move down the pad to the water if I hung it for a few hours before cleaning it?
Below are images of it being hung before cleaning:
IMG_4113.JPEG
IMG_4114(1).JPEG
 

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