I'm a big fan of Sandy's, I wouldn't waste my time to drive to East End, I sold them some corals once, they told me to bring all I could whenever I could so I did some more fragging and drove all the way there only to be told they don't buy from people they don't know.
I had spent some pretty good money there and all of the sudden they did not know me. I was always a little uneasy about all the dead and dying fish they had in their tanks anyway.
I like Aquatica as well he always has good looking stuff and not too bad on prices but he has strange hours and several times I drove there and he wasn't open, it is too far out of my way to find him closed.
Sandy's has always had what I needed and has always treated me fair in credit for coral frags. All I have ever wanted was store credit for supplies, I have never asked anyone for cash. I know they turn my frags around and make big bucks off of them but if I walk out with what I needed I was happy. So East end can take a flying leap.