For a while I wondered what I could do to hatch more eggs.
I didn't want to put anything artificial, so I took some big flat rocks in the wood about 5 to 6 inches thick and on those rocks I saw cut about a 1/2 inch of hollow, then I deposited these rocks at different places in the pool.
It seems to work well, since there is an explosion of Fairy shrimp every year now.
A+
That was a great idea to "enhance" the habitat required for your Fairy shrimp reproduction without modifying the overall natural environment of the pool!
I really enjoy reading your PB postings since they are outside of the typical projects pursued by most people with ponds.