what fish to add?

[Grinner1]

I have a 600ltr tank with a 8" oscar, 5" siamese tiger and a 10" clown knife, the tank is quite inactive during the day so i am wanting to add another fish, may be a cichlid of some sort any advise?

 

[fishnutham]

how about a couple large loachs add a power head mid tank and watch the fun..

 

[Grinner1]

what is a power head?

 

[fishnutham]

what is a power head?

http://www.aquaticeco.com/index.cfm/fuseaction/product.detail/iid/8739/cid/2148

 

[Grinner1]

any other ideas i was thinking more along the lines of a severum of flowerhorn?

 

[benzjamin13]

Get some Geos

 

[Grinner1]

what is a geo?

 

[dark_knights_99]

Ornate Bichirs dude

 

[Grinner1]

i am looking for more of a mid to top swimmer!

 

[benzjamin13]

what is a geo?

Geophagus...here's a pic I found online.