Thanks for the confirmation! I do think there have been multiple spawns and I only began to notice because of the large amounts of babies.Those sure look like RFA babies to me, but yours are FAR more prolific than mine! I think because I have high flow for SPS, only a few of the babies actually live. Mine spread out, and aren't clustered like that.
Given the different sizing and sheer amount it seems like maybe it could be multiple spawns worth of RFA.
I'd be curious to know what others think.