what fish to add?

Grinner1

Feeder Fish
MFK Member
Jan 6, 2007
26
0
0
south yorkshire
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?
 
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