My parrots are pretty aggressive, today I decided
to put my 3 inch female guppy ( close to ram's size)
into the 75 gal and they decided to chase her all
around the tank. Then I took the parrots out and
let the female get "established" and after 2 hours,
I let in the red parrots and No fighting!
And the temp thing, that's pretty weird since my
LFS has them in 75F and they were stunning.
Fish store will not have Blue ram's for long at temp's under 80 degree's F.
Folk's that say otherwise are usually regretful ,ignorant,or just plain lying.
Research on the Ram's can be far more useful than opinion's which are like Bar-B-Q recipe's,everybody has one.