Bloop Cosmetic Crate

Only a 0.01% chance of showing up as an Aquarium item and a spot in Admin Events: that is how rarely the Bloop Cosmetic Crate turns up as a Secret fish (rarity rank 8). It takes a Magnet as bait and weighs at most 10 kg, 26th of 34 Secrets by maximum weight, level with Umbral Matrix and under Gem Blobfish (21) and Singularity Control Unit (25). The wiki adds that, rarity aside, it lands easily and drifts slowly along the bar.

What matters is the loot table: Luck Potion Tier 1 x2 (35%), Glitched Potion (20%), Secret Bloop Bobber (20%), Secret Baby Bloop Fish (10%), Bloopster Title (10%) and Bloop Boat (4%). The Baby Bloop Fish in that list is the Exotic with the 420 kg ceiling, so one crate in ten ends with that fish. The catch lines are “First! The crate is mine!!!”, “Wonder what’s in it?!?!?!?” and “Finders Keepers!!!”.