I like the idea of Discuss fish. Had thought of it before, but was worried about them becomming a snack. But hey, my 6" bala shark became a snack, so I guess we all take a chance.
I have Dats in another tank. They are just not big enough yet to put in with my rays. Since they grow slow, it will be another 6 month to a year before I feel they are ok to put in with the rays.
But I do like the Discuss idea. Think I will go that rt. And I like the look of that Geo also.
thanks for the info..