Skimmer. Wow. Octopus seems to have quite a few more to choose from than they did a while back. There are soooooooo many. Don't even know where to begin...the Diablos are apparently newer. That doesn't necessarily mean better, though. Any experience with these? Do I need the one with the controllable pump? I think that this model is for in-tank, which is NOT what I want, but am not entirely sure...Also, in the past, my HOB octopus was great--until the pump went out. Man, I don't care to deal with poorly designed pumps any more. I'm very over it, and it's even been a while since I had one. Hopefully the pumps for their higher-end skimmers are better...?