Seafood for lunch?
Look at those big, round eyes and those awful teeth. How much more do you need for an underwater race to that treasure? A very fun LEGO set.
Retailer prices for 7978 are sorted by the latest lowest price.
Retailer pricesPrice history 7978
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 1 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 1 Dutch retailers, 15 Dec 2025 – 14 Feb 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock | |
| €70,00 | Bol.com | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Signal is mixed. Small movements are more likely than a big drop.
What to know about LEGO 7978 before you buy.
Outsmart the Angler Fish and evil guardian to reach the treasure! Expert diver Dr. Fisher spots an ancient helmet among the ruins of LEGO® Atlantis. Just then, the evil Barracuda and giant Angler Fish, with its razor-sharp teeth, swim out from the murky depths. Can Dr. Fisher outsmart the deadly creatures to claim the golden helmet and take a photo of the rare fish? Includes 2 minifigures: diver with camera and Barracuda guardian with trident Minifigure accessories include diver's helmet, tank, and swim fins Deep Sea Jet features harpoon, grabbing claws Angler Fish measures 7” (17cm) wide, 5” (12cm) long Angler Fish features moving fins and tail! Includes treasure chest with jewels, golden helmet, and special gold elements Snap the jaws of the Angler Fish!
All about this set
Background, build experience, collector context, and buying notes in one story.
Outsmart the Angler Fish and evil guardian to reach the treasure! Expert diver Dr. Fisher spots an ancient helmet among the ruins of LEGO® Atlantis. Just then, the evil Barracuda and giant Angler Fish, with its razor-sharp teeth, swim out from the murky depths. Can Dr. Fisher outsmart the deadly creatures to claim the golden helmet and take a photo of the rare fish? Includes 2 minifigures: diver with camera and Barracuda guardian with trident Minifigure accessories include diver's helmet, tank, and swim fins Deep Sea Jet features harpoon, grabbing claws Angler Fish measures 7” (17cm) wide, 5” (12cm) long Angler Fish features moving fins and tail! Includes treasure chest with jewels, golden helmet, and special gold elements Snap the jaws of the Angler Fish!
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Plates Special
Plate Special 1 x 1 with Clip Vertical [Thick U Clip]
Part ID 4085c · Red
Qty 11
Bracket 1 x 2 - 2 x 2
Part ID 44728 · Light Bluish Gray
Qty 8
Plate Special 1 x 2 with 1 Stud without Groove (Jumper)
Part ID 3794a · Black
Qty 5
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]
Part ID 4081b · White
Qty 4
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]
Part ID 6019 · Yellow
Qty 2
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]
Part ID 6019 · Black
Qty 2
Plate Special 1 x 2 with Handle on End [Closed Ends]
Part ID 60478 · Red
Qty 2
Plate Special 1 x 2 [Top Clip]
Part ID 92280 · Black
Qty 2
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]
Part ID 2444 · Black
Qty 1
Plate Special 2 x 2 with Pin on Bottom
Part ID 2476a · Dark Green
Qty 1
Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips]
Part ID 60470a · Light Bluish Gray
Qty 1
Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm]
Part ID 88072 · Black
Qty 1
Plates
Plate 1 x 2
Part ID 3023 · Lime
Qty 7
Plate 2 x 4
Part ID 3020 · Blue
Qty 3
Plate 1 x 4
Part ID 3710 · Red
Qty 3
Plate 2 x 2 Corner
Part ID 2420 · Red
Qty 2
Plate 1 x 3
Part ID 3623 · Lime
Qty 2
Plate 1 x 6
Part ID 3666 · Black
Qty 2
Plate 2 x 6
Part ID 3795 · Black
Qty 2
Plate 2 x 3
Part ID 3021 · Red
Qty 1
Plate 1 x 1
Part ID 3024 · Red
Qty 1
Plate 1 x 4
Part ID 3710 · Black
Qty 1
Plate 6 x 6
Part ID 3958 · Dark Tan
Qty 1
Animal / Creature Body Parts
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium
Part ID 87747 · White
Qty 7
Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section
Part ID 40379 · White
Qty 2
Creature Body Part, Dragon Wing
Part ID 6133 · Dark Green
Qty 2
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small
Part ID 53451 · White
Qty 1
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium
Part ID 87747 · Pearl Gold
Qty 1
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small
Part ID 53451 · White · Spare
Qty 1
Bricks Sloped
Slope 45° 2 x 1 with Bottom Pin
Part ID 3040b · Dark Green
Qty 6
Slope 33° 3 x 1
Part ID 4286 · Dark Green
Qty 5
Slope Inverted 45° 2 x 1
Part ID 3665 · Dark Green
Qty 4
Slope 30° 1 x 1 x 2/3 (Cheese Slope)
Part ID 54200 · Dark Green
Qty 4
Slope Inverted 34° 3 x 1 with Internal Stopper
Part ID 4287b · Dark Green
Qty 3
Slope 45° 2 x 1 Triple with Ovoid Bottom Pin
Part ID 3048c · Dark Green
Qty 1
Slope 30° 1 x 2 x 2/3
Part ID 85984 · White
Qty 1
Slope 30° 1 x 1 x 2/3 (Cheese Slope)
Part ID 54200 · Dark Green · Spare
Qty 1
Bricks Curved
Brick Curved 6 x 1
Part ID 42022 · Lime
Qty 4
Slope Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges]
Part ID 61678 · Red
Qty 3
Tiles Special
Tile Special 1 x 1 with Clip and Straight Tips
Part ID 2555 · Dark Green
Qty 3
Bricks
Brick 1 x 2
Part ID 3004 · Dark Green
Qty 3
Brick 2 x 6
Part ID 2456 · Red
Qty 2
Brick 2 x 3
Part ID 3002 · Black
Qty 1
Brick 2 x 2
Part ID 3003 · White
Qty 1
Hinges, Arms and Turntables
Hinge Brick 1 x 2 Base
Part ID 3937 · Black
Qty 3
Hinge Brick 2 x 2 Top Plate Thin
Part ID 6134 · Red
Qty 2
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]
Part ID 73983 · Black
Qty 2
Hinge Brick 1 x 2 Base
Part ID 3937 · Light Bluish Gray
Qty 1
Hinge Brick 1 x 2 Top Plate Thin
Part ID 3938 · Red
Qty 1
Hinge Brick 2 x 2 Top Plate Thin
Part ID 6134 · Light Bluish Gray
Qty 1
Technic Bricks
Technic Brick 1 x 1 with Pin Hole
Part ID 6541 · Black
Qty 3
Technic Brick 1 x 1 with Pin Hole
Part ID 6541 · Yellow
Qty 2
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin
Part ID 32064a · Green
Qty 1
Tiles
Tile 1 x 4 with Groove
Part ID 2431 · Dark Red
Qty 2
Bricks Round and Cones
Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder
Part ID 30367b · Lime
Qty 2
Dome Hemisphere 4 x 4
Part ID 86500 · Trans-Dark Blue
Qty 2
Brick Round 2 x 2 [Grill]
Part ID 92947 · White
Qty 2
Brick Round 2 x 2 [Grill]
Part ID 92947 · Tan
Qty 1
Technic Bushes
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Yellow
Qty 2
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Yellow · Spare
Qty 1
Windscreens and Fuselage
Windscreen 8 x 6 x 2 Curved
Part ID 41751 · Dark Green
Qty 2
Technic Pins
Technic Axle Pin with Friction Ridges Lengthwise
Part ID 43093 · Blue
Qty 2
Technic Pin with Friction Ridges Lengthwise and Center Slots
Part ID 2780 · Black
Qty 1
Technic Pin without Friction Ridges Lengthwise
Part ID 3673 · Light Bluish Gray
Qty 1
Technic Pin with Friction Ridges Lengthwise and Center Slots
Part ID 2780 · Black · Spare
Qty 1
Technic Pin without Friction Ridges Lengthwise
Part ID 3673 · Light Bluish Gray · Spare
Qty 1
Technic Connectors
Technic Axle Connector Double Flexible [Rubber]
Part ID 45590 · Black
Qty 2
Technic Axle Connector with Axle Hole
Part ID 32039 · Red
Qty 1
Bricks Wedged
Wedge Sloped 45° 2 x 4 Triple
Part ID 47759 · Dark Green
Qty 2
Plants & Trees
Plant / Creature Body Part, Vine / Tail / Tentacle / Bionicle Spine, Spiky
Part ID 55236 · Dark Green
Qty 2
Minifig Accessories
Minifig Footwear Flipper [Thin]
Part ID 59275 · Yellow
Qty 2
Minifig Footwear Flipper [Thin]
Part ID 59275 · Lime
Qty 2
Equipment Whip [aka Plant Vine]
Part ID 2488 · Black
Qty 1
Equipment Camera Handheld with Right-Aligned Viewfinder
Part ID 30089a · Black
Qty 1
Minifig Footwear Flipper [Thin]
Part ID 59275 · Yellow · Spare
Qty 2
Minifig Footwear Flipper [Thin]
Part ID 59275 · Lime · Spare
Qty 2
Plates Round Curved and Dishes
Plate Round 4 x 4 with Pin Hole
Part ID 60474 · Dark Green
Qty 2
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Pearl Gold
Qty 2
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Red
Qty 2
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Green
Qty 2
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)
Part ID 4032a · White
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Clear
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Pearl Gold · Spare
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Green · Spare
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Clear · Spare
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Red · Spare
Qty 1
Plates Angled
Wedge Plate 3 x 6 Cut Corners
Part ID 2419 · Black
Qty 1
Transportation - Land
Handlebars
Part ID 30031 · Black
Qty 1
Minifig Shields, Weapons, & Tools
Weapon Spear Gun with Rounded Trigger and Thin Spear Base
Part ID 30088 · Flat Silver
Qty 1
Weapon Trident
Part ID 92290 · Pearl Gold
Qty 1
Rock
Rock 1 x 1 Jewel / Gem 24 Facet
Part ID 30153 · Trans-Green
Qty 1
Rock 1 x 1 Jewel / Gem 24 Facet
Part ID 30153 · Trans-Neon Green
Qty 1
Rock 1 x 1 Jewel / Gem 24 Facet
Part ID 30153 · Trans-Dark Blue
Qty 1
Technic Axles
Technic Axle 2 Notched
Part ID 32062 · Red
Qty 1
Technic Axle 4
Part ID 3705 · Black
Qty 1
Containers
Treasure Chest Bottom with Rear Slots, with Groove
Part ID 4738b · Pearl Gold
Qty 1
Treasure Chest Lid [Thick Hinge]
Part ID 4739a · Pearl Gold
Qty 1
Bars, Ladders and Fences
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]
Part ID 48729b · Light Bluish Gray
Qty 1
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]
Part ID 48729b · Light Bluish Gray · Spare
Qty 1
Bricks Special
Brick Special 1 x 2 with Studs on 2 Sides
Part ID 52107 · Black
Qty 1
Minifig Upper Body
Arm Mechanical with Clip [Thin Support]
Part ID 53989 · Black
Qty 1
Transportation - Sea and Air
Propeller 3 Blade 3 Diameter with Axle Cross
Part ID 6041 · Flat Silver
Qty 1
Minifig Headwear
Helmet Underwater Atlantis Portal Emperor
Part ID 89918 · Speckle Black-Gold
Qty 1
Stickers
Retailer reviews
Summarized retailer review data when available.
Look at those big, round eyes and those awful teeth. How much more do you need for an underwater race to that treasure? A very fun LEGO set.
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 28 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.