Well I am lucky enough that all my fish swim INTO the net and so its easy to catch them
. BUT this is what i would do and It used to work for me until they started swimming into it LOL
Try and catch them normally with ONE NET and move fast as they are danios. They should hopefull go to the bottom to try and escape the net, and thats when you trap them against the glass and swoop upwards towards the surface.
This worked for me and i know people say that You should use two nets to reduce stress, but the above method is very quick when done right and therefore not much stress.
OR use two nets close together and trap the fish inside them when the are put together, then lift to the surface.
Good luck

Try and catch them normally with ONE NET and move fast as they are danios. They should hopefull go to the bottom to try and escape the net, and thats when you trap them against the glass and swoop upwards towards the surface.
This worked for me and i know people say that You should use two nets to reduce stress, but the above method is very quick when done right and therefore not much stress.
OR use two nets close together and trap the fish inside them when the are put together, then lift to the surface.
Good luck