
Is Horsea Good in Red & Blue Playthrough?
Horsea is fragile and slow for a Water-type. Seadra is an improvement but doesn't stand out in a game full of strong Water options. Hard to recommend over what's already available.
Horsea resists most of Brock's coverage and hits back hard.
Misty's typing presses Horsea's defenses.
Horsea trades roughly evenly with Lt. Surge's team.
Erika's team hits Horsea's weaknesses hard.
Horsea trades roughly evenly with Koga's team.
Horsea trades roughly evenly with Sabrina's team.
Seadra resists most of Blaine's coverage and hits back hard.
Seadra resists most of Giovanni's coverage and hits back hard.
Lorelei's typing presses Seadra's defenses.
Seadra resists most of Bruno's coverage and hits back hard.
Seadra trades roughly evenly with Agatha's team.
Seadra trades roughly evenly with Lance's team.
Seadra has the type edge here and should clean up Blue's team.
Catchable
Catch Horsea on Seafoam Islands (walking, Lv 28-30, uncommon).
Recommended Moves
- After Misty
- TM11WaterBubble BeamPower 98Accuracy 100%PP 20Prize for defeating Cerulean Gym Leader Misty
- After Lt. Surge
- TM10NormalDouble-EdgePower 100Accuracy 100%PP 15Rocket Hideout
- TM13IceIce BeamPower 95Accuracy 100%PP 10Celadon Department Store roof
- TM09NormalTake DownPower 90Accuracy 85%PP 20Silph Co.
- After Erika
- HM03WaterSurfPower 143Accuracy 100%PP 15Safari Zone
- TM40NormalSkull BashPower 100Accuracy 100%PP 15Safari Zone
- After Sabrina
- TM14IceBlizzardPower 120Accuracy 90%PP 5Pokémon Mansion
- LV 45WaterHydro PumpPower 180Accuracy 80%PP 5
Evolve Horsea to Seadra
Horsea evolves into Seadra at Level 32. Your Horsea should hit Level 32 before you reach Blaine, at typical leveling pace.
Recommended Moves
- After Misty
- TM11WaterBubble BeamPower 98Accuracy 100%PP 20Prize for defeating Cerulean Gym Leader Misty
- After Lt. Surge
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Rocket Game Corner
- TM10NormalDouble-EdgePower 100Accuracy 100%PP 15Rocket Hideout
- TM13IceIce BeamPower 95Accuracy 100%PP 10Celadon Department Store roof
- After Erika
- HM03WaterSurfPower 143Accuracy 100%PP 15Safari Zone
- TM40NormalSkull BashPower 100Accuracy 100%PP 15Safari Zone
- After Sabrina
- TM14IceBlizzardPower 120Accuracy 90%PP 5Pokémon Mansion
- LV 52WaterHydro PumpPower 180Accuracy 80%PP 5
How to Get Horsea in Red & Blue
Seventeen encounters over five spots make Horsea common enough that hooking the little seahorse is rarely the holdup. Super Rod fishing and shallow-water walking both turn it up.
5 locations to catch Horsea
Encountered via fishing with a Rod, tall grass encounters
Where To Catch Horsea in RB
Horsea is where the line starts, caught through fishing and walking encounters at Lv. 15-33. The chain covers 2 catchable stages before reaching the final form.
Step 1Horsea ✓Cinnabar IslandLv.15Super RodRate 25%Route 19Lv.15Super RodRate 25%Route 20Lv.15Super RodRate 25%Route 21Lv.15Super RodRate 25%Seafoam Islands - B3FLv.15Super RodRate 25%Seafoam Islands - B4FLv.15Super RodRate 25%Seafoam Islands - B1FLv.30-32GrassRedRate 30%Seafoam Islands - 1FLv.28-30GrassRedRate 20%Seafoam Islands - B2FLv.28-30GrassRedRate 15%Seafoam Islands - B3FLv.29-31GrassRedRate 15%Seafoam Islands - B4FLv.31-33GrassRedRate 35%
Step 2Catch or Evolve into SeadraCerulean Cave - 1FLv.23Super RodRate 25%Cerulean Cave - B1FLv.23Super RodRate 25%Route 23Lv.23Super RodRate 25%Seafoam Islands - B3FLv.39GrassRedRate 4%or evolve from Horsea (Step 1)
To plan your throws, open the Red & Blue catch rate calculator with Horsea preloaded.
Horsea Weakness
Horsea is weak to Electric and Grass. Not many exploitable gaps in the Water typing defensive chart. Horsea's Water typing only leaves 2 gaps to cover.
| Damage | Types |
|---|---|
| 2x (Weak) | Electric, Grass |
| 0.5x (Resist) | Fire, Water, Ice |
- Only 15 types exist — Dark, Steel, and Fairy are absent
- Ghost has no effect on Psychic (a known bug, fixed in Gen II)
- Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
What is Horsea Weak Against
AvgHorsea Evolutions
Horsea evolves into Seadra, but can't breed. At 340 stats as a Water type, evolution is the only path. Evolving adds up to 100 stat points total. View every chain in the Evolution Chart.
How to Evolve
RB Horsea Best Moveset
Water pre-evolution with a tiny Special stat. MoveSurf doesn't threaten and nothing else compensates. Heading toward Seadra without contributing along the way.
Best Build
Utility Moveset
- Hydro Pump
- Blizzard
- Surf
- Surf
Moves List
Most of Horsea's flexibility comes from TMs. Same-type output runs through Hydro Pump and Surf, but Normal and Ice and the rest of the TM pool push it from predictable to genuinely threatening.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
All 16 TMs are obtainable before the Elite Four
Tutor Moves
Base Stats
Known to shoot down flying bugs with precision blasts of ink from the surface of the water.
Horsea Red & Blue Guide
In Red & Blue, for a casual playthrough, Horsea works as a placeholder. Water coverage is useful early. The real payoff is Seadra. That's where the stats start mattering.
Game Availability
Present since Red & Blue, Horsea appears in 20 games spanning 9 generations. Gen 1 originals like Horsea have the longest track record of availability in the series.
Click a game to view version-specific details
- Gen 1RBDebut

Red & Blue - Gen 1Y
Yellow - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG

FireRed & LeafGreen - Gen 4DP

Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7SM

Sun & Moon - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7Let's Go

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves
Explore
Where to go next after Horsea.