too much biology for 180?

[Quo Vadis]

Hello everyone. I have a 180 gallon tank with a bonded pair of crenicichla cincta which are 14 inches for the male and 10 inches for the female. I have a 9 inch pair of heros severus atabapo as company. I am adding two 8 inch astronotus ocellatus bahia red from Rapps and a large L-029 vampire pleco.

My question is, can I add some Caquetaia Spectabilis into the mix or am I pushing the limits? I have 2 FX5 filters, 2 powerheads and I do weekly 50 percent WC's.

Please share your thoughts. Thanks!

How many Caquetaia?

 

[mrrobxc]

A pair.

 

[mrrobxc]

Here are some pics. The pleco didn't make it. Cincta's tore it up. the plants growing out of the top help with water quality.

Would a kelberi work in here or is the tank too small. I can always unload the oscars if I need to down the road.