well it depends on what your looking for ? for example lets say ur looking for special attacker then starmie , kingdra , dewgong is ur best bet if physical i wud strongly recommend gyarados or ferligator
Rayquaza
Most water type Pokemon can learn the move Waterfall.
for a starter like ferlagitar empoleon blastoise and swampert will be htdro cannon but for a normal water Pokemon might be hydro pump but surtainly misses a few times i think
use a water stone o evole it
To get a Shedinja in Pokemon Heart Gold you must trade it from either Pokemon Ruby, Sapphire or Emerald. Jacko25
water asorb or volt asorb.
Golduck
Rayquaza
The best place to evolve a Pokemon in Pokemon Heart Gold is at Mt. Silver.
Other bodies of water and by the water you can get a wooper
It's Darkrai. You can't get him in Heart Gold.
Pokemon Heart gold is different from Pokemon Gold cuz heart gold has better graphics new Pokemon and new events
You can find them by surfing and fishing.
Most water type Pokemon can learn the move Waterfall.
Probably electivire or ampharos.
Pokemon Heart Gold And Soul Silver.
Answer:Mainly level 10 Magikarp.