Since my comments were the ones that got you into this, I think I'll have explain myself a bit further
First off, now that reconsidered, I suppose the angels are fine,
for now.
They seem to be a harmonius couple since they breed all the time etc. But it shouldn't be forgotten that they
are cichlids. And when it comes down to cichlids there's always an element of surprise along. It is known that cichlids are by far one of the most evolved fish families around, they are a lot more intelligent than some small tetras for instance.
Now it is possible however that a pair that has done well for ages suddenly falls off and starts fighting, now everyone who's kept cichlids probably knows that when these babies are on the warpath, it's not a pretty sight. There will probably be bodies, especially in small tanks where there isn't space for the weaker side to retreat.
Multiple unsuccessful spawnings,
might trigger this sort of behaviour for example.
So that's my main concern now, though it is always possible that they maintain a loving relationship from here to eternity but these things still should be taken in account.
But regarding those tetras, I still strongly recommend for you to consider having a different species.
