The reason i ask is im not to happy with the By dimensions 6' x 4' x 4' horn shark & a California ray? I know the height really doesn't matter its the footprint width and length. Or should i go with a foot print 96×36×30?
Yes the 96"×36"×30"would definitely be better for the Horn Shark and California Ray.
The Horn Shark could live in a aquarium with that dimensions for life but not sure what specie of California Ray.