I ordered a purple, gold, and blue coral banded shrimp - I was told by one person that they can all be together and one that says they'll fight in a heartbeat. Anybody know who is right? I know that generally the regular cbs can't be put with other shrimp, but i've previously had a puprle cbs with a pair or harlequins in a 3 gallon so i know they can at least be with other shrimp, but haven't tried with each other. I don't want to take them home and watch them terriroize each other until the next day when i could bring them back.. so can i have 'em or not? anyone?