it's not as easy as it sounds matching up mandarins is a hit or miss either they will get along or fight till the death
One can.consume all the pods in a short time two would be kinda risky..
This needs to be considered
not only will the mandarins consume the pods so will all the other fish in your tank
I add 3000+ every other day to maintain pod population in my main tank
most fish not only mandarins will consume a well populated tank with pods in 1/2 days
you must be able to breed pods in mass quantity's or it's a loosing battle
I use a 30gal long breeder divided into 3 sections for raising pods , mysiss , and brine shrimp
you must also plump them up with good nutrients like phyco pure copepod blend
this will ensure your fish stay healthy with well needed nutrients
raising feeders can be a lot of work maintaining water for proper temps in each section and water quality as they each require different water quality's , temps and parameters for breeding
it can also get quite smelly if you don't keep up proper maintenance
they require lots of water movement along with lr rubble and decent amounts of macro's to hide in
I also have the lighting set up for 5 hour cycles this fools them
leading them to breed faster
another thing I should mention is always wear long sleeve gloves when handling them as pods will burrow into your pours in your skin quite fast , their like leeches and suck blood