Hi, I take a pitcher or other plastic container, pour the fish in, and slowly add tank water maybe a half a cup every 15 minutes or so. When the water in the container gets too full I will pour a little out in the sink (carefully), and continue to pour small amounts of aquarium water in every few minutes. Do this for an hour or a little longer and then I hold the container over the tank and scoop the fish/creature into the tank with my hand. I do not like to net a fish as I have had bad luck with scales or fins etc. getting damaged by nets. Try not to get much of the water from the container into your tank as it may carry disease organisms....oh yea, I forgot, if you quarenteen like you are suppose to you can just flip the container and let the fish swim out! I like to do all this while keeping the house temp at aleast 75 degrees so that the water in the container is near the tank temp. I find that if one is not quarenteening that the float the bag method does not work too well as the opened bag often sinks in the tank. Lesley