hi there, i have a 6'x2'x2' tank with a pair of retics (m/f), and also 3 tinfoil barbs. my quesiton is that i can get a good deal on polypterus ornatipinnis thats about 4 inches long at the moment. and is wondering if i grew out the poly with the retics would i have issues with agression or the poly attacking the rays when all the fish are older. i should also add in that the rays are both around 5 inch disc diameter at the moment. anyone who has kept this polypterus species with rays please give me your input and tell me how they got along.