He was trying to find the Sea Ponies of course

maby its a magic lower thats painless.

@TexasUberAlles
 
You actually don’t need animal protein for adequate neurological development. =o I know this from personal experience.
 
Pinkie Pie said “we are vegetarians,” but she could have been referring to Earth Ponies and Buffalo. Unicorns, according to nordic folklore, have a reputation for being ravenous omnivores with a taste for human flesh. Villages would sacrifice bulls and bears to keep the unicorns at bay. So if ponyville ever has a food shortage, there’s a good chance Twilight Sparkle and Rarity will tuck into Fluttershy’s bear friend and Daisy the Cow’s husband.  
#themoreyouknow

… For sport. I mean, c’mon…
 
 
More importantly, we get previews for comments now? That’s awesome.

On the subject of eating meat, I’d say it’s a “sometimes” food.

While RL equines are basically herbivores, they can and do eat meat at times. They can even be trained with preserved meat as fodder (useful in very cold climates).

I just assumed he was one of those sociopathic lunatics who catch and release fish for fun, like they have nothing better to do with their day than torture mindless animals.
 
Normal ponies aren’t actually the strict herbivores people think of them as being– they’ll eat eggs and grasshoppers and shed deer antlers all day long for the calcium and protein– so I see no reason why cartoon ponies should be any different. They drink and eat dairy products into adulthood, so they already don’t even fit the definition of a vegetarian, much less an herbivore.
 
My headcanon is that foals, once weaned, require more protein for proper childhood neurological development than can be provided by plant-based food sources, so they eat eggs and fish and maybe surplus chickens to a degree which adults– except for mares at “certain times of the month”– usually don’t.

Magnum: “I hope something comes up soon. I need something in the aquarium before Sweetie Belle gets back home and wonders why her goldfish is missing.”

Maybe they fish for sport?

Fish in Equestria aren’t sapient. If they were, Fluttershy wouldn’t be personally catching fish for her otters.

Recreational fishing? They may not eat fish. These ponies may have other uses for them.

So ponies are hunting other living creatures and eating them? Why, they have committed an act of utter barbarity!
 
Well done!
 

But Harry’s a bachelor… Oh. Well, I don’t judge, but I’m not sure how Rarity’s mom will take the news.
 
Anyway, ponies do have carnivorous pets, and Flutters was shown feeding some otters or ferrets fish, so there you go.

he’s trying to catch sea cucumbers

He’s having an affair with Harry the bear’s wife. The fish is for her. I can’t see it ending well for him…

Fish ain’t meat!

Rarity’s family are descended from a long line of carnivores. Rarity tries to keep it a secret, but often indulges in her favorites meats.

They’ve got a cat.

Nobody cares about fish!

To hang them on the wall?

Is catch-and-release fishing really that hard of a concept?

My dad and I used to fish a lot, just for fun. It’s fun to see what types of fishies you can catch

Lacto-ovo-pisco-mechanicallyseparatedmeato.

 
Wrong!

Horses have been known to enjoy meat.  
Both in mythology and out.