aggressive fish for 30 gal?

[Joshy]

I think 30 gallons is a lot to commit to just two convicts.
And despite their nastiness, they are hardly renowned for being ultra aggressive...

 

[T]

get a FAHAKA PUFFER. really aggresive and most have great personality

 

[91lxstang]

a fahaka puffer is alittle too large for my 30 gal lol

 

[Joshy]

Hmmm, you could do one red belly piranha?

 

[RadleyMiller]

get a puffer!

 

[upyun]

1) 2 Crenicichla regani (dwarf pikes are unique and pretty spunky)
2) Short bodied or Albino Polypterus senegalus (they max out around 6-8 inches)
3) Freshwater Prawn (amazing predator from what I hear)
4) Avocado/Bronze Puffer
5) African Butterfly and a couple of Synodontis cats.