As the pair wander piggyback around the shallow edges of the pond , the gelatinous egg strings , which may contain 3000 to 6000 eggs and be 3 to 4.5 metres ( 10 to 15 ft ) in length , get tangled in plant stalks .
The egg strings may have 3000 to 6000 eggs and be 3 to 4.5 metres ( 10 to 15 ft ) in length .