Predatory fish for a 20 gallon

[Wowwww]

I have a 20 gallon tank with sand for it's bottom and i want a predatory fish that is kind of close to a wolf fish. I want a fish that is aggressive, good looking and DO NOT JUMP OUT OF TANKS. I already have cichlids and puffers so not them. Thank you.

 

[Pinkey]

A marbled goby would live in a 20g for a while. It will outgrow the tank but they don't jump and don't swim a ton so the smaller space would work.

 

[Wowwww]

oooo that would work

 

[Wowwww]

anymore tho?

 

[Alan_ Mackey]

Perhaps Monodactylus argenteus is an interesting and aggressive fish with a beautiful appearance, capable of adapting well to the aquarium.

 

[BigFishBoy14]

A betta will be good in 20 gallon tank are marbled gobies large enough and aggressive?