Fishing spots › Petri Dish

Petri Dish

Fishing spot 21 in Tap Fishing · 30 kinds of fish · catches worth ×80

A drop of pond water under the microscope. Everything here is very, very small.

The Petri Dish is harder to open than the other spots. First catch every fish at The Trench, its special fish included, and beat both of its bosses. Then unlock it on the map for 50,000,000 coins. Every catch here is worth 80× what the same rarity pays at the Pond.

Fish at the Petri Dish

29 regular fish live here. The common ones are listed below; the 9 rarer fish are left for you to discover. Rarer fish show up less often and are worth more coins.

	Fish	Rarity	Size
	Amoeba	Common	0.1–0.3 in
	Blue Stentor	Common	0.1–0.2 in
	Copepod	Common	0.1–0.1 in
	Diatom	Common	0.1–0.1 in
	Euglena	Common	0.1–0.1 in
	Nematode	Common	0.1–0.2 in
	Paramecium	Common	0.1–0.2 in
	Rotifer	Common	0.1–0.1 in
	Seed Shrimp	Common	0.1–0.1 in
	Volvox	Common	0.1–0.2 in
	Vorticella	Common	0.1–0.1 in
	Water Flea	Common	0.1–0.2 in
	Bloodworm	Uncommon	0.3–0.6 in
	Coleps	Uncommon	0.1–0.1 in
	Cyclops	Uncommon	0.1–0.1 in
	Hairyback	Uncommon	0.1–0.1 in
	Mosquito Larva	Uncommon	0.2–0.3 in
	Planarian	Uncommon	0.2–0.4 in
	Spirostomum	Uncommon	0.1–0.2 in
	Water Bear	Uncommon	0.1–0.1 in
	??? Catch it to find out	Rare	0.1–0.2 in
	??? Catch it to find out	Rare	0.5–1 in
	??? Catch it to find out	Rare	0.1–0.2 in
	??? Catch it to find out	Rare	0.1–0.1 in
	??? Catch it to find out	Rare	0.1–0.1 in
	??? Catch it to find out	Rare	0.4–0.6 in
	??? Catch it to find out	Rare	0.1–0.1 in
	??? Catch it to find out	Rare	0.1–0.1 in
	??? Catch it to find out	Rare	0.1–0.1 in

The special fish

Every so often a special fish swims through the Petri Dish. It only stays for about 20 seconds, so tap it quickly: it is worth 19× a normal legendary catch and counts toward the Legend Hunter milestone. What is it? You’ll have to catch it to find out.

	Fish	Rarity	Size
	??? Catch it to find out Special	Legendary	0.5–0.8 in

Critters

Critters are not fish, but they wander through and you can catch them for bonus coins and a spot on the Critters page of your Fishdex.

• Water Mite

Watch out for

Hazards glow red and show a warning before they arrive. Thick Gloves from the shop keep you safe for three minutes.

• Bacteriophage: goes boom: you lose a few coins and every fish scatters.
• Stinging Hydra: stings: you lose a few coins and your taps freeze for a moment.

Something hidden

There is one hidden thing to find at the Petri Dish. It only peeks out for a few seconds at a time, so keep your eyes open. Finding it pays a coin bonus and a Lucky Lure.

← The Trench Marsh →

Tap Fishing is a free idle fishing game you play online: tap fish to catch them, fill your Fishdex and unlock over 20 fishing spots. Play now.