No issues. I keep them well fed. My RTGG hates silver fish and is always messing with the Aro, can't catch the Bala's. Once a month the RTGG gets ripped apart from pushing the Aro to the limmithim eating a sprout is hilarious man....ever any problems with the trop and the black aro?
same, my silver was a ...... "richard". Blacks are generally more calm... but I had the silver with florida gars... that Trops another story!!!!!!!!awesome.. if i hadnt had such a nightmare with a silver arrow... ide be tempted to try a blacky.
The tank is a 450.Dang man what size is your tank?! Looks huge! And nice fish as well. I wish gars were legal here in cali