Advise Me Some Tankmates :)

[Soundspeedy]

Hey,
I Have a 300 litre tank which currently holds 1 Rokteil Secerum 7", 1 blue acara 3", 1 ghost angelsfish 2" and 2 black widow tetras 2".
I am planning on getting 2 or 3 more angelfish.
So what i am looking for is 1 catfish (up to 6") and a few more S.American Cichlids (up to 7"), so please suggest some which would be compatible!
I dont want any aggresive fish in the tank as currently they all get on and it is a happy tank.
It'd be helpful to get a list of compatible Cichlids.
Thanks,
Danny

 

[~T~]

Hoplosternum catfish

 

[markandhisfish]

a nice catfish in the size range youre looking at is a featherfin synodontis cichlid-wise some nice speces could include things like sajica T. elliotti .