I'he heard that Cell-Pore has openings a good size for copepods and maybe too small for amphipods. It might be a safe haven for the little guys. Just throw in a brick or some cubes.

I always thought that mandarin dragonettes eat copepods and not amphipods or mysis, live that is.

Here's a link:

http://www.drsfostersmith.com/produc...fm?pcatid=4169

Jack