Ok, So I was thinking about setting up a new system. What I want to do is get a 15g display, with a 10-15g fuge that will also be on display. I will also have a 10g sump. I know I will have a skimmer, and a Calcium reactor... and those are about the only real decisions I have made so far, but I want to know if I would be able to keep a small species of pipe fish in the fuge. The whole system will be about 40g, and the fuge will be well stocked with macros. Are these conditions suitable for pipefish? If so, how many, and what species? Thanks in advance for all your help.