Ghost Shrimp Eggs!!!

Crushed up flake food, fry food, crumbled egg yolk--the larvae will be free floating for several days and consuming stuff from the water column.

The ghost shrimp we see here on the Mid-Atlantic coast are from the Gulf Coast. There are clear shrimp from several families, but around here you do not see any cold-water shrimp. Considering transport I would supect that ghosts in your area are also from the Gulf.

Snails are good and lots of live plants, they will eat the algae and micro organisms that come in with them. There is an interesting thing about successfully raising ghost shrimp and light. You need to cover the sides of the container when the light on top isn't on, or use a container with opaque sides. I included a link that goes into more detail. Also as with all fry, a sponge filter is good. http://www.fishpondinfo.com/shrimp2.htm

if you need to keep the water warm you can suspend it within your tank. It will then keep it at the same temperature that your tank is at. I used to use this method when I was raising angelfish. Believe it or not I was suspending 10 gallon aquariums inside a 55 gallon aquarium for a short amount of time. It was interesting to say the least.