I am going to start this post with my latest eggs. The best prediction I have received online is that these are from a pond snail, a.k.a. Physa. I think otherwise, but we shall see.
Okay, I have to concede that they were Physa (a.k.a. pond or bladder snail) eggs [see left]. Physas are quite cute little snails but on a 10 gallon they are far too likely to over-populate and become a problem--so they had to go.
I seem to have a few survivors, including this rather interesting color variant.
White physa has a stay of execution...