Well I was checking out my aquarium tonight as I fed as usual and found this. Excuse the piece of styrofoam its in there until the epoxy cures.
I have noticed these guys flaring and twitching but I thought they were just being aggressive to each other after I removed the other 2 cardinals. I guess not!! So now its all research tonight in preparation for the new babies. I was planning on redoing the sump for a longer more narrow frag section (so I can use T5) but I had no idea I would need to be thinking of baby cardinals.