Hydro Crystallization Station (6199-1) is a Hydronauts LEGO set released in 1998 with 485 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Hydronauts sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 5 minifigures and 145 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1998 (28 years ago — may be retired)
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Catalog scale
485 parts listed · 145 inventory lines tracked
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Minifigures
5 in this set's inventory — verify completeness when buying used
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Build manual
Digital booklet available on this page — use it to verify bag contents
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~836 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Hydro Crystallization Station
Parts in this set
145 parts · page 1 of 4 · updating…
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Animal Body Part, Shark Body, without Bottom Tube2547 · ×1 · Dark Gray -
Animal Body Part, Shark Head2548 · ×1 · Dark Gray -
Animal, Manta Ray30084 · ×1 · Black -
![Animal, Octopus [Plain]](https://cdn.rebrickable.com/media/parts/elements/6096092.jpg)
Animal, Octopus [Plain]6086 · ×1 · Black -
![Bar 1 x 6 [Closed Studs]](https://cdn.rebrickable.com/media/parts/elements/4212408.jpg)
Bar 1 x 6 [Closed Studs]6140 · ×4 · Yellow -
![Bar 7 x 3 with Double Clips (Ladder) [Straight Clips]](https://cdn.rebrickable.com/media/parts/elements/4216824.jpg)
Bar 7 x 3 with Double Clips (Ladder) [Straight Clips]6020 · ×2 · Dark Gray -
Bar 9 x 13 Grille6046 · ×1 · Black -
Baseplate Raised 32 x 32 Canyon with Gray Underwater Print6024pr0003 · ×1 · Light Blue -
![Box 2 x 2 x 2 [Hollow Studs]](https://cdn.rebrickable.com/media/parts/elements/4109977.jpg)
Box 2 x 2 x 2 [Hollow Studs]4345b · ×1 · Trans-Green -
Box 2 x 2 x 2 Door with Slot4346 · ×1 · Trans-Green -
![Bracket 1 x 2 - 1 x 4 [Square Corners]](https://cdn.rebrickable.com/media/parts/elements/243626.jpg)
Bracket 1 x 2 - 1 x 4 [Square Corners]2436 · ×1 · Black -
Brick 1 x 126112 · ×1 · Blue -
Brick 1 x 162465 · ×7 · Black -
Brick 1 x 162465 · ×4 · Light Gray -
Brick 1 x 23004 · ×5 · Yellow -
Brick 1 x 23004 · ×1 · Blue -
Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges2454a · ×2 · Yellow -
Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges2454a · ×2 · Black -
Brick 1 x 33622 · ×2 · Blue -
Brick 1 x 43010 · ×5 · Black -
Brick 1 x 83008 · ×1 · Yellow -
Brick 2 x 23003 · ×4 · Yellow -
Brick 2 x 23003 · ×5 · Light Gray -
Brick 2 x 2 Corner2357 · ×2 · Red -
Brick 2 x 33002 · ×2 · Blue -
Brick 2 x 43001 · ×3 · Yellow -
Brick 2 x 43001 · ×3 · Light Gray -
Brick 2 x 4 x 2 with Holes on Sides6061 · ×1 · Yellow -
Brick 2 x 62456 · ×1 · Light Gray -
Brick 2 x 62456 · ×2 · Black -
Brick Arch 1 x 12 x 36108 · ×2 · Black -
Brick Round 1 x 1 Open Stud3062b · ×13 · Trans-Green -
Brick Round 1 x 1 Open Stud3062b · ×2 · Red -
Brick Round 2 x 2 with Axle Hole3941 · ×3 · Black -
Brick Round 2 x 2 with Axle Hole3941 · ×6 · Yellow -
Brick Sloped 33° 3 x 14286 · ×2 · Blue -
Brick Sloped 33° 3 x 23298 · ×1 · Black -
Brick Sloped 33° 3 x 2 with Divers Bubbles Print3298pr0038 · ×7 · Yellow -
Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin3048c · ×3 · Light Gray -
Brick Sloped 45° 2 x 2 with Dark Screen and Blue Controls Print (Aquazone Hydronauts)3039pr9985 · ×2 · Yellow -
Brick Sloped 75° 2 x 1 x 3 with Open Stud4460a · ×9 · Light Gray -
![Brick Sloped 75° 2 x 2 x 3 [Hollow Studs]](https://cdn.rebrickable.com/media/parts/elements/4189348.jpg)
Brick Sloped 75° 2 x 2 x 3 [Hollow Studs]3684 · ×5 · Yellow -
Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin3747a · ×1 · Blue -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366026.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×1 · Black -
Brick Sloped Inverted 75° 2 x 1 x 32449 · ×7 · Black -
Brick Special 1 x 1 with Handle2921 · ×2 · Black -
Brick Special 1 x 1 with Headlight4070 · ×4 · Trans-Neon Orange -
Brick Special 1 x 2 with Pin2458 · ×1 · Light Gray