Try pming Ashes2ashes, she has a colony going. I bought 7 from her last March, she might have some for you. They were very healthy little guys, all 7 are still alive and breeding in my 125g. Over the past 20 years I've kept multi's several times. I'd start with six to ensure you get at least one male. Typically, a dominant male will oust other males from his colony. I set up my tanks with a small area separated with java fern tied to rocks, put a shell or two in that area, the males will find refuge there. You can then sell those males or turn them into your LFS for credit. Good luck with them, they make for a fun tank.