Any advise welcome, I have 9 tanks and have been keeping fish a long time, I lost my 18 inch Arowana a month ago, Iam thinking of adding a jardini Arowana to one of my tanks to replace the silver Arowana, as I love Arowana's, the tank Iam thinking of adding the jardini to has a 9inch disc stingray in a 6 inch peacock bass and 10X 5inch dollars and a 6 inch African tiger fish ,, the jardini is about 10 inch ,, any advise on this is welcome