dave_oddballs
ray and oddball keeper !!
you would need 6x2x2 for the smaller rays, like scobinb a hystrix, good luck fiing them though! Retics are easy to get but hard to keep, motoros are easy to find and fairly easy to keep (goo water etc) but get to at least 30" disc, marble motoros get around half that which still meens at least 30" width depending on the variant. I can get a pair of hystrix that can live in a 6x2x2 for life but will cost you about £450, bare in mind they are well sought after! Im getting a pair of scobina, but thats the only pair in the uk. I tried retics and was advised not to, and subsequently, id advise not to, they are lovely fish, just too fragile! When you work out the biggest tank you can get (at least 6 foot long and 30 inch wide) let us know and i and others will be more than happy to help!