A few months back I bought a small IT (about 4" now) to grow out for my 160g with my green aro, ornate etc, but last week a guy who I sold a 10" IT to about a year ago decided to sell his set up so I bought my old fish back and its now 13"! I know its not a good idea to mix two dats (usually kept solo or groups of 3+ ), but with such a size difference is there likely to be any aggression as it'll be fairly obvious whos in charge? I hate myself for making another "will X and Y get on" threads, but I'd appreciate it if anyone with experience of mixing two dats with a big size difference could give me some advice, because if its not likely to work I might go buy another medium sized dat off the guy I got my big one back from.
Cheers
Cheers