You should classify what your asking are you asking about evolutanary items like the water stone of items that boost water power like the splash plate....another hint down ask the question on here just search it on Google it is a lot faster
use rods or surf.
SOulsilver
Well SoulSilver and HeartGold are somewhat the same and in HeartGold you can get Magikarp, Goldeen, Seaking, Chinchou (One's ive seen) and in Lake Rage you can get a shining Gyarados.
A Pokemon from a Diamond, Pearl, Platinum, Heartgold, or Soulsilver event.
U have to talk to the warden and give him a Pokemon [im not sure which].I think it has to be from the safari zone.Once you have it talk to him in your party first spot and talk to him.
a
Place 10 Water Objects in rocky beach (puddles,fountains and water holes) and use the super rod
there are none
water stone
Place 6 plain objects(flowers) in a wetland area.
you trade a Pokemon for a water Pokemon, catch a water Pokemon, or you migrate a water Pokemon from a gameboy game. you can also get a water Pokemon for your starter Pokemon. (i beat the game on both heartgold and soulsilver so if u need help please contact flyingstar369@gmail.com
once you have the national dex go to the safari zone then you will get to use object arangement then put water and grass objects in the wetland area
The HM Dive is not in SoulSilver or HeartGold, for there is no deep water to dive into.
You can find Lotad at:Plains- 12 Water Objects Desert- 8 Water Objects.
In the Safari Zone (Rocky Beach) with 13 Plains objects and 17 Peak objects (and waiting 100 days).
You use a water stone.
buy it at the pokeathelon dome