Glad you asked, he is a monster! By far my favorite fish, he never stops moving, eats everything and is actually starting to turn quite dark! The castexi rays definately have the fattest tails I have ever seen. He is the only ray I own that I have never seen burrow in the sand, I think I have only seen him sit still 2 or 3 times. I hope the pic gives you a little look at how he has changed, I will post a better one tomorrow
