Join Date: Nov 2011
Location: South-central Washington State, USA
No, you should be fine in both cases.
A 90 is plenty big enough for a pair of angels, four other cichlids, and some dithers. Having a good bit of cover in the tank (wood, rocks, plants) would help a lot, too.
"One day...one day, this path will lead us to the White City, and the tower guard will take up the call: the Lords of Gondor have returned!"
–Boromir, The Lord Of The Rings