thats not totallt true its up to us to provide our fish with conditions they like not just what suits us or is easy to keep clean
You're absolutely correct.... conditions such as clean water, regular maintenance, large enough tank, selection of compatible tank-mates, etc...
for me rays have taken millions of years to evolve to live in substrate meaning they will be much more happy if provided with it
I really wonder if they would be "happier".... maybe rays do this more so for survival reasons such as hunting/finding food and covering to avoid being eaten....in the home aquaria, in general, enough food is provided and with proper tank mate selection, being dinner is at a minimum.... these conditions in the home aquaria makes substrate less "necessary" in my opinion... to what extent, I do not know. What I do know is more and more rays are Captive Bred which seem to be very "happy" either way..... although I can see how it could be more important to have substrate for a Wild Caught specimen that has been used to sand/substrate all its life.... to what extent I do not know.
if a fish gets scared in the wild it hides if a ray gets scared it covers its self in substrate
You are absolutely correct, my question here is if given "proper" care,...... good diet, non agressive tank-mates, "large" tank, etc., how long will it take the ray to feel "safe".... or will it ever feel safe? I have seen many many bare bottom tanks with rays that seem very active, great coloration, voracious appetites, come to the front tank whenever the owner is present, etc. which leads me to believe substrate plays a much lesser role in the home aquarium vs the wild.
people can debate this subject as much as they like but as far as i know we dont find any bare open bits of glass in any river i know
I agree, but then again, we don't see rays in small puddles in nature, which is the equivalent to putting a ray in a 1000 gallon tank .... and we know most keepers keep them in even smaller tanks....
you will enjoy your rays much more watching them dig in substrate
I respect your opinion, I like the bare bottom look, and love to see my rays at all times.