welcome!...nice photo of your red and FRT....what's wrong with you Dat that you're not liking?
Where are you located??
If you can, add some dither fish with your aro and dats. My aro and dat still go at it after 5 years of being together. A lot less now since i added some distractions.
A bigger tank would be my recommendation. You need to upgrade asap with those kind of fish. You can always add fish after a tank upgrade.I have 2 eartheaters that are almost the same size as the Dat. They are getting picked on quite a bit too. Fins are a mess. Any other recommendations? Keep in mind I only have a 75 G tank right now.