Best Aggressive Freshwater Aquarium Fish. Being aggressive eaters these freshwater fish will be responsible for keeping your tank clean thanks to their love for vegetative matter and algae which can build up at the bottom of home aquariums. The lifespan of Jack Dempsey is 5-7 years and it grows up to 8 inches.
Cichlids are infamous for their aggression but the incredible thing is that this particular kind is relatively friendly. The most aggressive freshwater fish that can fit into your aquarium is the red-bellied piranha. The Red Devil is another cichlid species aptly named for their aggressive behavior.
This species of fish are found in the Amazon and rivers in southern Africa.
Here well break down nine of the most predatory freshwater breeds for home aquariums so you can decide if theyre a cool addition to your tank or more trouble than theyre worth. The most aggressive freshwater fish that can fit into your aquarium is the red-bellied piranha. The red coloration around the mouth during breeding is the reason behind the name. Tiger barbs have a reputation for being mildly aggressive fish.
