Kept Giant Rotten Fish

Description
"A giant rotten fish, preserved for lengthly storage despite its putrid state."

"Affects a single target. A combinable material. Restores more Stamina. Inflicts poison."

Location
Kept Giant Rotten Fish cannot be found in any part of the game. It must be created by combining Giant Rotten Fish with an Airtight Flask. Giant Rotten Fish can be obtained by the following means:
 * Leaving a Giant/Giant Rank Fish in the player's inventory for too long (one to three in-game days).
 * Found with other rotten fish in The Blighted Manse.