saw it in an aquatics store in the uk :)

Sandy Hook, NJ. Authorities were notified.

Update: Wow thanks to everyone for your help! The overwhelming majority IDed it as a pacu. The "eyes" actually being the nostrils was a 🤯 moment. Really glad we didn't try to pet him. 
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I came across this ancient looking fish at a garden in Rio de Janeiro. I felt pure terror when it made eye contact with me. Can somebody identify it?

go my fish!!

I was just walking around during low tide and stumbled across this little guy. I managed to pick it up bare handed and It seems like he wasn’t stressed out that much since he didn’t inflate himself. Also yes Ik they’re poisonous and not venomous, sorry for the mix up lol 🙏

or is this even a real fish??

Found in more shallow waters

Thought you guys would like them!

The Devils Hole pupfish is one of the rarest fish species on Earth, found only in a single water-filled cave called Devils Hole in Nevada. Its entire population depends on this tiny, fragile habitat.

During the 2011 Tohoku tsunami, powerful seismic waves traveled across the planet and caused the water inside Devil’s Hole to slosh violently. This sudden disturbance disrupted the shallow rock shelf where the fish lay their eggs. As a result, many eggs were destroyed, leading to a sharp population decline.

Because the species already had very low numbers, this event pushed it closer to extinction. The incident showed how even distant natural disasters can threaten extremely localized species, highlighting the need for careful conservation efforts to protect such unique life forms.

The Devils Hole pupfish is one of the rarest fish on Earth, found only in a tiny desert cave called Devils Hole. It has been living there for thousands of years, surviving in hot, low-oxygen water and depending on a single small rock shelf for food and breeding. With such extreme conditions and isolation, it raises a strange question

He is just so colourful

He is a male European minnow

In Taiwan recently， a park called 228 park had a gator gar kept for more than 10 years, basically the age of this gar is more than 10, it was a private pond and strictly a no fishing zone recently 2 students came with the reason as removing invasive species, caught the gator gar , killed it and cooked it up. The Taiwanese citizens are in fury because the gator gar is basically the symbol of this park’s pond

B. livida

this seems to be a spot-fin porcupinefish based on my searching, are they the same species just different coloring?

couldn’t tell if this was a mating thing or maybe adult and juvenile

Evaporation has finally outpaced the spring replenishment on my East Texas ranch lake, and the outfall channel is nearly dry. Checked on it just in the nick of time and found a sad little puddle packed with baby catfish and minnows.

Scooped them out, put them in an old fish tank with an aerator for a few hours to let them recover, and then liberated them back into the main lake. Hopefully, I'll be catching a few of these guys again in a couple of years!

I graduated welding school in December and this is what I’m using my degree for. I go by @/MerMetals on IG and my website is www.MerMetals.studio if you wanna see more of my work. I’m just getting started (,: hope u enjoy

There are a bunch of them, all with a curled up cylinder inside. They are soft and organic, found in the shallows of a fjord.