
The physical appearance of this fish ispowerful as it has a robust and laterally compressedbody. Their fins are short but have strong muscles which allow them to swim very quickly if their prey undertakes the escape. However, the payara fish’ (as they are known in Spanish) most striking trait is undoubtedly itsspectacular mouth, considered a powerful machine to tear their prey apart. The lower jaw is longer than the upper jaw, and both are armed withpointed sharp teeth from those used to crush their victims.
The attacking method and physical appearance is quite similar between the Payaras and the Goliath Tigers fish, since their heads are very similar. In addition, these two species can naturally replace their teeth and their four-part jaws allow them to open the mouth very broadly in both cases. The vampire fish, thanks to their good eyesight, hide deep in the fast and murky waters by launching ambush attacks on their prey, which makes of them a deadly and perfect machine, and they do so with lethal and diabolical precision.

In nature, vampire fish can become quite large. They measure anywhere from 2 – 3 feet long, and their weight is around 10 – 35 pounds. The largest recorded came in at 40 pounds. Captivity is another story. When bred in aquariums, vampires rarely exceed 12 inches and 5 – 10 pounds.
In the wild, vampire fish are ferocious hunters that are constantly looking for their next prey. They’ve been known to chase off medium- and large-sized fish that they don’t want to eat just so the water will be clear for the fish that they do want to consume.
In terms of compatibility, they may tolerate others payaras in small groups, but they’re mostly lonely creatures. It’s assumed that they only come together for mating and migrating. Captive payaras take these antisocial tends up to 11. They don’t like to be housed with other fish at all, and they’ll fight, threaten, charge and kill speciesthat are put in the same aquarium. They hate being crowded.
They’re moody and temperamental fish on a good day, but when you force to defend their territory, they become aggressive as well. It’s recommended that only experienced fish owners try their luck with vampire. They definitely aren’t first-time fish.

The vampire fish are characterized by being extremely aggressive, voracious, and very fast fish,which makes them true hunting machines. They usually swallow their entire prey, although sometimes they only bite their prey with their powerful tusks, tearing large pieces and then swallowing them. Vampire fish usually eat all kinds of food, although they prefer a carnivorous diet. So, they devour smaller fish found in their territory. Yet the vampire fish’ favorite food, are the fearsome piranhas, which they fully swallow in a single bite.
SOURCE: OURMARINESPECIES.COM








































