Pokemon GO Deep Depths brings free Field Research and Collection Challenges for players to partake in. The Field Research tasks involve catching Water- and Dark-type Pokemon, defeating Team GO Rocket Grunts, and hatching eggs. The Collection Challenge tasks involve catching/evolving specific Pokemon, with rewards involving XP and Stardust.Deep Depths also has free and paid Timed Research questlines. The event also sees the first appearance of Nickit and Thievul in Pokemon GO.Also Read: Pokemon GO Deep Depths preparation guideHow to complete Deep Depths Field Research in Pokemon GOThe tasks and rewards for the Deep Depths Field Research are:Catch 5 Dark-type Pokemon - Alolan Meowth encounter [shiny variant available] or Carvanha encounter [shiny variant available]Catch 5 Water-type Pokemon - Male Frillish encounter [shiny variant available] or Clauncher encounter [shiny variant available]Defeat 2 Team GO Rocket Grunts - Nickit encounterHatch an Egg - Clauncher encounter [shiny variant available]How to complete Deep Depths Collection Challenges in Pokemon GOThe tasks and rewards for Deep Depths Collection Challenges are:In the Nickit of Time Collection ChallengeCatch MurkrowCatch PurrloinCatch SneaselCatch NickitRewards: Liepard encounter, 1000x StardustSea-volution Collection ChallengeCatch ClauncherCatch Clawitzer (Evolution)Catch Female FrillishCatch Female Jellicent (Evolution)Catch CorphishCatch Crawdaunt (Evolution)Rewards: Lumineon encounter, 3000 XPAlso Read: Best PvP picks to farm in Pokemon GO Deep DepthsCheck out other Pokemon GO guides:Ditto disguisesBuddy Evolution Adventure Together guideBest Fast Attacks in Pokemon GOSierra countersCliff countersArlo countersGiovanni countersTeam GO Rocket Grunts