i started with sand and was just like toby on this thinking that i didnt want to take away from their natural behavior. after having rays for a time i got tired of the black sand showing everything so went with a brown more natural look. and i really didnt like the sand i went to... loved the color and look but this sand was alot finer and got into filters and always stuck to the rays. so i switched again this time with carrib sea peace river. i really like the gravel as it wont go into the filter and since ive had the rays for a long time they dont burry themselves any more and if so its very rare. they sift through the gravel and that is fun to watch but unlike pete i do seem to get small stuff in the gravel so am vacuming it out every week. not a big deal but im setting up my new tank and went with tile as its alot deeper and dont feel like using a snorkel to vac out the tank. i really like the tiled look as it looks better than bb and is still easy to clean like bb.
so to sum that up toby i see where you are coming from but you will find out that they barely bury themselves after a time so its not bad going bb or tiled. and gravel looks good and its fun to watch them sift but on deeper tanks will be a pain to clean. bb is easy to clean and maintain. but tile is easy to clean maintain, cheap, and looks great. just know that there are more options than just bb.
sorry for the long post just thought i would let you know what i went through to get where im at though.
so to sum that up toby i see where you are coming from but you will find out that they barely bury themselves after a time so its not bad going bb or tiled. and gravel looks good and its fun to watch them sift but on deeper tanks will be a pain to clean. bb is easy to clean and maintain. but tile is easy to clean maintain, cheap, and looks great. just know that there are more options than just bb.
sorry for the long post just thought i would let you know what i went through to get where im at though.