Freshater Shrimp

According to Claus Christensen, manager of Tropica Plants in Denmark, 
shrimp are an excellent animal for controlling algae in planted aquaria. 
After talking with Claus I went out and bought two varietiies. ONe has 
turned out to be a filter feeder so I hold little hope for his/her algae 
controlling talents. The others however are about 1.5 inches long and 
when they are not hiding, spend their time picking around in the gravel 
and plants. One of the females is clearly loaded with eggs above her 
swimmerets and I want to give those eggs the best chance for survival 
that I can. Can you recommend what to do?
Justin P. Healy
jphealy at sysconn_com