Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to draw blood from an adult fish [title] Place the fish in the holding tank. [title] Wait until the fish loses balance and swims abnormally. [title] Squeeze the peduncle of the fish gently and observe the response.

Ending1: [step] The fish should not move his fins excessively or it is almost impossible to draw blood. [title] Relax your mouth and body while the fish's breathing helps to remove toxins. Ending2: [step] If the fish does not lose his balance, proceed as though the fish is grabbing on to something which should not be there. [title] At this point you might also rename the fish-jack. Ending3: [title] If he bites you, pull off his nose. [title] When the fish is calm enough, prick some bite marks to help calm the fish. Ending4: [substeps] If the fish attempts to swim away, wait until it stops responding to pressure. If the fish does not respond, proceed with the directions.

Answer format: ending1/ending2/ending3/ending4