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IdleOn Hidden Advice Doodlefish (Big Fish)

September 9, 2026

In World 7, you can find a giant Doodlefish that is willing to offer you several account-wide upgrades in exchange for coins. There are currently 7 different upgrades available.

The Advice Doodlefish is hidden in the map Doodle Reef of World 7.

Hidden Fish Location

You can find it by jumping down the Coral Steps on the left side of the map; once you touch the last platform the Advice Doodlefish will appear, displaying available upgrades.

Advice Doodlefish Upgrades

There are 7 different Advice upgrades available and all of them cost coins to upgrade.

The level requirement is the total sum of all levels amongst all your IdleOn characters.

Each upgrade has diminishing returns and the cost increases per level.

Advice Description Level Requirement
Advice on Life and Death Well uhh dying is bad. +0.1% faster W7 mob respawn rate 4000
Advice on Being Tired It feels better to not be. +0.08% Max Stamina in Spelunking 4300
Advice on Sleeping Don't do it while awake. +0.2% Spelunking AFK Gains 4600
Advice on Murder One Only do it in video games. +0.1% Kill per Kill in W7 5050
Advice on Being Smart Use 100% of your brain. 1.01x Class EXP Gain 5600
Advice on Materialism Two things better than one tbh. +0.1% Double Gold Food drop chance 6250
Advice on Settlement Clear mobs build outpost ez. +0.15% extra mob clear for Royal Guardian 7000

 

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