for me its easy, my oscars will swim right into the net ... I guess tehy are just used to it ... now for my community tank with guppies and all the otehr inhabitants its a pain ...easiest way is get a good sized quality net seems to be the easiest way for me and I also have a peice of glass that I put in at one ned of the tank and slide it coraling the fish into a much smaller space and then net them ... hope this helps