vitaly;4450351; said:if you dont have sand, then you are missing out on alot of intersting and natural behavior
T1KARMANN;4451624; said:I can't understand how people say it's easy to keep clean
With bare you have a extra bit of glass to keep free from Alge and if your tank is the right size for rays that bit of glass will be massive
As for amonia pockets in the sand yes that can happen in a non ray tank with very deep sand but in a ray tank you should have no more than 1 inch of sand which the rays should be turning over ever 6-12 hours
All very good and valid points though not sure about Ammonia exsisting in the pockets in the substrate certainly anaerobic activity ....but the principle is spot on.
I personally use small pea gravel,the pale round grade you can no longer get (the old Dorset gravel).This is very easy on the rays underside and mouth parts,ive used it for years,sands fantastic too but i have had issues with it getting into the impeller housing in some of my internal polishig filters and wearing the impeller down .
I love watching the rays throwing the substrate around its so entertaining,not only that a stingrays first line of defence is to burry itself when it feels the need..........surely it can't be right to deny them such basic instincts when afterall we are keeping them in captivity....i think a bare bottom tank definitely benefits the keeper rather than the ray,however they do seem to live long lives with or without,i also find having a substrate far more aesthetically pleasing.
Just my view!