On the flip side, I brought a trio or four, honestly can't remember now, of WC hystrix From Richard, which were quarantined and treated and feeding well on worms before he'd sell them to me - his standard practice. I raised them over nearly two years, no issues, they were fussy eaters at times and not all would break off worms or prawns onto pellets. But I raised them to breeding age and they were amazing, my most favourite rays I've ever had. Sadly I sold them in a great deal which I regret really but hey ho. Moral of this particular post is you can buy healthy WC and not have much trouble at all with them as long as you buy WC from a reputable source that quarantines correctly. You could save a little money this way in the initial purchase yes, but I'd still favour CB for all the well known reasons.