I witnessed my "small"'collection spawn last night! I have a 2.5 gallon with 6 in there so far. I noticed my largest (4"across fully expanded), which has been up from and center against the glass since I put it in there, starting the party with the first burst of sperm. Up till that moment the water was clear, just after main lights out with only fuge light bleeding over to the tank. Few minutes later I see teal colored eggs coming from behind the rock where my blue nem was hiding, along with another burst of sperm from another hiding nem. So I hear they are hermaphrodites and that more than likely will do this again with them reversing rolls and maybe the others will join in.