Well, this isnt a should be fine but it is a "If anything, this will kill that"
I had a red devil (New world cichlid) and yellow lab (Old world cichlid) and they said that if I cant rehome them in time, the yellow lab would kill the red devil, not what happened.
The yellow lab was brutally murdered. As was the BN pleco. I only had them a few weeks, wasnt very tragic to me.
Oh dear...I've never owned Cichlids, except rams, but surely when you get fish called red DEVILS and green TERRORS, doesn't that ring any alarms? I don't mean any disrespect to you EJE, please don't take this comment the wrong way, I mean it in a general sense...why do these fish have such aggressive sounding names in the first place?