ditrivore kits

[FragIt Dan]

You'll get pods and worms from some good live rock, if you want diverse 'goodness' you're best bet would be to siphon a cup or two of sand out of a friend's well established tank and release it into yours, but you might get some undesirables in there too. I have never seen a micro-fauna package or sand critters for sale on their own (other than starfish or snails etc).