I am going to have an empty 300 very soon; actually a 75 as well. I have a pair of Black Nasty's in another tank so those are our. I've wanted Festae for a bit now. I've kept Oscars, Red Devils, Flowerhorns, Piranha, etc in the past. I can't decide how to stock this monster. I was thinking a pair of Festae in the 75 for a while but the big tank is tough to decide. If you had this problem, what would you order?