After beating the pastoria gym leader talk to the galatic grunt near the great marsh entrance. He said that you been ease droping and run away. Follow him and your rival bump into you for a battle. After the battle follow him again and keep talking to him intil he is done with running away so he will battle you. Then after beating him he will just walk toward the lake. Then you will she cynthia. Talk to her and she will talk about the psyduck having headake. She will give you a secret potion to heal their cronic headake.
You get a secret medicine from cynthia(*who later in the elite four is the champion)
After the explosion at the Great Marsh, follow the Cyrus and beat him. Then Cynthia will give you the SecretPotion, which makes the Psyduck's heads feel better and makes them move.
Head north from Solacean Town until you reach an area with a building and a group of wild Psyduck to the left.
Psyduck evolves into Golduck, starting at level 33.
Psyduck evolves to Golduck at Lv. 33.
Psyduck can be found in the Safari Zone while surfing.
You have to keep following the road to the right of the psyduck until u get to the next lake. Cythia will then give it to you :)
in almost every body of water (using surf)
you can usally run into psyduck in lakes. there is the great marsh though.....
Read this http://wiki.answers.com/Q/Where_is_the_5th_gym_leader_in_Pokemon_Diamond
When you go to the lake by Pastoria city and you get its gym badge the champion will come to you when you go by it and give you a SpecialMedicine that you give to the Psyduck
Psyduck can breed with psyduck, I think
After the explosion at the Great Marsh, follow the Cyrus and beat him. Then Cynthia will give you the SecretPotion, which makes the Psyduck's heads feel better and makes them move.
In Floaroma town. In the big house with planting soil. Go in, and talk to the girl.
get nationaldex go to the route by were the psyduck were (ahead) and usepokeradar and find one no you can only find bagons in Pokemon perl version
Hypno, Alakazam, Mewtwo, Psyduck,Golduck, Slowpoke, Slowbro, Slowking, Medicham.
In Pokemon Diamond the TM 90 is the move substitute.
In Diamond and Pearl Psyduck learn Disable at level 14.