commonly found carnivorous fish for 20 gal tank

[gmwJOY]

i actually thinking about turn my community tank to ----

1. fish that all time active , schooling

2. cool looking, colourful

3. fish that loves bloodworms,shrimps,dead fish meat some time live guppies,feed freazy

4. for 20 gal , require no plants

5. commonly found all over the world


6. what are their tank mates

7. provide pictures please

example tiger barb

 

[ReApEr666]

pike minnow

 

[gmwJOY]

it get large for 20 gal
https://www.google.co.in/url?sa=i&source=images&cd=&ved=2ahUKEwj2yPTTgJfjAhUE5o8KHRunCnsQjRx6BAgBEAU&url=https://www.pinterest.com/pin/556053885225304956/&psig=AOvVaw0upbk7il-f6n7O6ZnHAes0&ust=1562183318008880

 

[ReApEr666]

my mistake...meant pike killifish

 

[DRUKENMUNKY]

I would recommend exodons

 

[gmwJOY]

they are really nice and interesting fish but
pikeminnow , pike killifish, exodon are not available world wide

 

[Hendre]

I can't think of any schooling, predatory fish past exodons and perhaps some piranha. Fish small enough for a 20 gal are usually insectivores at best. Few fish are true piscivores, and definitely not small ones.

 

[PYRU]

Pea puffers. They will need some structure though

 

[Rocksor]

Does adult guppies or adult mollies eating their own fry count?

 

[Fishnerd360]

Dwarf pike cichlids, but they don't school.
Buenos Aires tetras when big.