I'm shocked our red devils fed on ants - I thought formic acid made ants not palatable or worse... So far, it's been about a week and we see no ill effects on the red devils from ant consumption. They are as perky, brazen, and hungry as ever.
As soon as fake wood was introduced, red devil juvies started fighting like never before... Thank goodness, this fighting subsided over the course of the day.
In the wild, Red Devils do a lot of algea grazing. It really shows in wild specimens as they have enlarged lips to help with this. So, them fighting as they are now is reasonable due to territorial claims over the object that may have algea they instinctively want to graze on.