First is equalise the temp , wait for your lights to go off or turn them so the fish go to sleep and/ or can’t see the pods
Turn all flow including the return so they don’t go to the sump and add them , wait an hour for them to cling on to stuff ( check there’s not a load on the waters surface and swish your hand to get them down
Then put pumps back on , leave light off ( best to do this at night )
Jobs a good en