I'm on a waiting list to get some blue coral bandeds for my 20gal reef tank. I'm wondering if I get 2 of them at a small size, will they fight or pair up? I know most shrimp are both male and female at the same time. I've also heard coral bandeds don't always play well together. I like to feed my fish and coral well so there are plenty of bristol worms and leftovers for them to eat.