Petco has one now. I can't seem to find any GOOD info on them. Anyone had one?\r\n\r\nLiveaquaria is so general in their descriptions, other things aren't specific enough. What do they scavenge? \r\n\r\nWill they eat my snails? Will a purple lobster fight with my CBS? Who is likely to win?\r\n\r\nThanks.