Aquarium
Item data
Rarity
Legendary
Type
Knife
Origin
Box
2025 Summer Box
Year
2025
Wiki tier
2
Unbox chance
5%
1 in 20
Today
Trading only
Designer
—
Original cost: 800 Beach Balls or 1 Summer Key per box
How to get Aquarium
The box left with the event; trading only.
What to know about Aquarium
- Unboxed from the 2025 Summer Box, the only crate of the 2025 Summer Event.
- Has a matching gun with the same name.
- Legendary entries in this box have a 5% chance.
Aquarium guide
Aquarium the knife came from the 2025 Summer Box, the only crate of the 2025 Summer Event. A box cost 800 Beach Balls or 1 Summer Key, and Legendary entries had a 5% chance, so this was a lottery pull and not a fixed reward like its Battle Pass gun partner.
Look
The blade is painted as a coral reef scene: clownfish, yellow tangs and several kinds of coral sit on a deep blue background, in orange, yellow, green and pink. The guard has a dark reddish tone, and the handle continues the reef colors more quietly.
Conflicting pages
Two details do not line up across the wiki. The knife's own page gives tier 2, while the Legendary Weapons table gives tier 3. And the 2025 Summer Box page describes the box as currently obtainable while also tagging it as a Removed Feature; the Summer Event 2025 page says the event ended on October 18, 2025. The weapon page says it is now only available through trading, which fits the event end date, so that is the version used here.
More from the 2025 Summer Box
Where the wiki disagrees
These pages of the MM2 Wiki give different answers. Both are shown instead of picking one.
- Aquarium (Knife) page gives tier 2; the Legendary Weapons table gives tier 3.
- 2025 Summer Box page calls the box 'currently obtainable' yet tags it Removed Feature; the Summer Event 2025 page says the event ended on October 18, 2025.
Frequently asked questions
How do you get Aquarium in MM2?
Aquarium came from 2025 Summer Box (2025) with a 5% chance. The box left with the event; trading only.
What rarity is Aquarium?
Aquarium is a Legendary knife, listed as tier 2 on the MM2 Wiki.
How much is Aquarium worth?
We do not list a trade value. MM2 values come from community value lists, change often and are not part of the game or the wiki. What affects demand is documented here: rarity, origin, year and whether it can still be obtained.
Data from the MM2 Wiki (CC BY-SA), organized with AI assistance. Nothing here is tested in the game, and trade values are not listed: those come from community value lists; data loaded 2026-10-25.