i know were you got them from a guy was selling them and aquarist classified
just keep a close eye on them as they have been kept in the same tank for some time but now you have moved them to a new tank they will need to sort out new Territory's
the fights may get bad but should sort them selfs out after some time
what i would say is keep the lights dim
Asian aros look great with lots of light but it seams to make them fight more
i found with my 9 Asian aros the only way to stop them fighting was only to use a blue moon light
by the look of some of the tails some of them were already fighting before they were moved
if the fights get to bad you may need to take the beat up aro out and let it recover then put it back in later