What Would You Guys Recomend

[Matthew Lee Newell]

for a 20 gallon tank
30x12x16

im looking for one fish, that grows to a nice size, and are really nice fish to look at,
the tank will be for the fish alone with a pleco....
cheers

 

[Ludwig Venter]

One Parrot fish....

 

[Curiosity101]

You're looking at more like 150l (40us gal) for a single parrot...

 

[meguro]

betta

 

[Davo86]

In a 25G I'd say go for a T.Ellioti or a Salvini,