I haven't had a fish tank in about 12 years. I now just got one to get back in the hobby and I'm noticing so many things are different. As a kid I had stingrays, and that is my intention for my new tank. I started looking up stingrays on the market and everything available today has totally changed from when I remember. Leopoldis and henleis used to be the cool black rays that everybody wanted, but now it looks like black diamonds and "super white cross" (whatever that is) are what's available and what everybody wants. It's crazy to see how much things have changed. In researching filters I've of course stumbled across the fluval Fx6, I don't remember anything even close to that beast being available last time I had a tank. Is there anything worth mentioning that you believe has drastically changed in the hobby within the last decade?