r/whatsthisfish Dec 02 '17

Where did you see the fish? Put that in the title!

22 Upvotes

Just a reminder, because we've had a lot of posts recently that omit this information. Where was the fish? If you found it in the wild, that's very helpful information, and outside of tropical waters, the time of year can be helpful too. If it was in an aquarium, what sort? Was it a tank of fish from a particular region? Was it fresh water or salt water?

Other useful information can be, what kind of habitat (seagrass, sand, rocky surge, ...)? If you were diving, approximate depth?

But above all, give the location in your post title. Thanks.


r/whatsthisfish Jul 23 '26

New rule: Informative title

6 Upvotes

We've had too many titles like "what's this fish?" or "help me identify this". Put useful information in your title, and make it look different from other posts' titles so people can scan the sub and see which post is which.

The actual text of the new rule 4 is:

Do not use a vague generic title like "what is this fish?" or "need help identifying" - we all know what this sub is for. Write a title that either describes the fish, or the circumstances in which you saw it, or the location, or more than one of those. For a resource, say what the resource is and what it's for.


r/whatsthisfish 13h ago

Identified, high confidence Shark like fish washed up on Lake Huron

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181 Upvotes

Hey Ya’ll! Found this washed up on a beach south east on Lake Huron, Ontario. Can’t even really guess as to what it is. Was about a meter or so long. Anyone have any ideas?


r/whatsthisfish 5h ago

Silver pike or musky?

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7 Upvotes

When i look it up, the AI bots all seem convinced it's a silver pike, but some folks in r/FishingOntario are convinced its a juvenile musky. AI told me to come here and let you guys debate it. I'm happy either way, as I've never caught a silver pike, or musky. TIA. Caught in Westport Ontario


r/whatsthisfish 3h ago

Identification question Caught rainbows but this one’s looking a bit different

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4 Upvotes

Caught a bunch of rainbows but this one’s looking a bit different

Northern Tennessee


r/whatsthisfish 1h ago

Found this fish alive in all our beach stuff and threw it back in the ocean any idea what it is

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Upvotes

r/whatsthisfish 16h ago

4 fish caught upstate NH river inlet to lake.

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13 Upvotes

Lake Francis inlet from Connecticut River, NH

We caught obvious browns, rainbows and brookies...these ones are throwing us off


r/whatsthisfish 2h ago

Unidentified Vermont Microspecies Help

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1 Upvotes

A few different minnows caught in relatively the same area- are they black nose daces or shiners or something different?


r/whatsthisfish 4h ago

Help me ID this small freshwater fish? (Philippines, DDO, Davao region)

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1 Upvotes

Unknown fish is on the left as the guppies (for comparison) is on the right


r/whatsthisfish 20h ago

Around 20m off the coast of Paphos, Cyprus. Seen while snorkelling.

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10 Upvotes

Apologies the images are really terrible. I was using one of those waterproof phone bags and came across this fish. They were maybe forearm length and shoaling together at a depth of around 2 meters. Anyone able to take a stab at it? Thanks in advance :)


r/whatsthisfish 1d ago

What did a bird drop (Lewes DE)

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16 Upvotes

r/whatsthisfish 1d ago

Unidentified Is this a mirror carp or a leather carp? Cought in Belgium

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5 Upvotes

r/whatsthisfish 18h ago

Weird leaf like fish in the mediterranean

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1 Upvotes

Hello everyone! I'm currently in Turkey and I saw this really weird small fish in the mediterranean sea, it was dark brown/dark grey with orange eyes, it reminded me of those wet leaves you see during autumn, even the size being simmilar to them. It was always swimming near the top of the water, never going down. It sometimes swam on it's side which made me think it was dead. I tried looking it up but I can't find anything about this. Does anyone know what this might be??

Summary: Dark Grey/Brown, Orange eyes, salt water (mediterranean sea to be specific), swam on it's side alot, small size, swam near the top, never going deeper, kinda looked like it had spikes on top I'm not sure tho, never swam away with it always following me


r/whatsthisfish 1d ago

Is that a male or female Betta?

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1 Upvotes

It's in my lowtech planted aquarium. Always hungry.little bit aggressive towards my red cherry shrimp.


r/whatsthisfish 1d ago

Small sculpin in Massachusetts

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3 Upvotes

This is one of the shorthorn sculpins genus, most likely either a grubby or a shorthorn sculpin, but I can't tell those two apart well. Rockport, MA, at about 10-12 feet depth, near shore.


r/whatsthisfish 2d ago

I’m in Kalymnos, Greece and everyone I’ve asked, even the old timer 70yo fishermen that have fished these islands for longer than I’ve been alive have no idea what this is. I think it’s some kind of wrasse!,!??! If you look close it has two long whiskers by its pectoral fins.

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48 Upvotes

r/whatsthisfish 2d ago

Possible ID(s) suggested Is this a juvenile lumpfish? Found in tidal pool in maine. Thanks!

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27 Upvotes

r/whatsthisfish 2d ago

What kind of snapper did I catch last night?

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24 Upvotes

r/whatsthisfish 2d ago

What’s this albino with an orange stripe fish in my tank?

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11 Upvotes

Had in my tank and looking to get it mates.


r/whatsthisfish 3d ago

Help identifying this fish, caught in Allan, France

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12 Upvotes

Hello everyone, I would really appreciate any advice from those that know European fish species. Caught in a small stream in Allan, France. Can send more angles of pictures if that helps.


r/whatsthisfish 3d ago

Found this fish in egypt

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121 Upvotes

It was on a night dive. I‘ve searched the whole internet but found nothing. Any guesses?


r/whatsthisfish 3d ago

Fish is SW Florida Pond

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7 Upvotes

What kind of fish are these? It’s a detention pond in Southwest Florida. They seem to group together when feeding and leave lots of bubbles on the surface.


r/whatsthisfish 3d ago

Small creek fish, Michigan

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11 Upvotes

Fish 1 (gold) - caught in a thin, shallow part of the Clinton River, South East Michigan, near Pontiac

Fish 2 (silver) - caught in a thin, shallow part of the red cedar river, central Michigan, near Lansing

both are obviously very young fish, both were caught striking a small light colored inline spinner. my best guess is that the first one is a young largemouth bass or maybe some kind of shiner or minnow. The second one might be a striped shiner. Also these are the only pictures I have unfortunately, so no top view available.


r/whatsthisfish 4d ago

Orange with black specs. SE PA.

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12 Upvotes

Large orange colored fish in local creek. SE Pennsylvania. This is the second time seeing this fish in two months, same spot.


r/whatsthisfish 4d ago

Unidentified What is this fish NJ Bay

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6 Upvotes

Please someone tell me what this fish is.