I have a 2.5 gal copepod raise tank that I keep stocked with live rock. Every month I exchange rocks from my chamber 1. The pipe fish is the only one who can go in there. Also I catch a bunch with a turkey blaster and squirt them in. I just started with 3 bottles of copepods in my tank then another 2 to raise. Works out great! All my fish love them! I've also trained my mandarin to eat Brine shrimp so that helped me a ton..
That is cool i have an old aquaclear filter that i am going to place on the back of my tank with no filter media, just rock and some chaeto. hopefully the pods can breed inside this and their numbers stay high for the fish