Are These Fish Safe To Add To My Tank??

[vanimal]

I have a 150 gallon tank with sand and a few live plants. I'm wanting to add a Black Ghost Knife and/or a Blood Parrot Cichlid. Will they be ok with my current stock??(I'm fine adding an African Brown Knife if that would be better than a BGK)
1Rainbow Shark
1Eclipse Catfish
1Bristlenose Pleco
1Common Pleco
5 Silver Dollars
1 Peacock Eel

 

[bettaowner]

Brown knife might be better. Silver dollars are plant eaters and would rip up those plants. I think anubias would be safe though.

 

[vanimal]

Ok I heard that the BGK might attack some of my other fish? Would a Parrot Cichlid do the same?