Haha just after I read your post… I saw them spawning or I think it was spawning
They used my HC (Hemianthus callitrichoides) as a spawning mop
I also have some Dwarf Hairgrass I’m hoping they’ll spawn in too so I have a better look at it. Looks like I have two pairs right now as there’s 4 chasing each other arund in my patches of HC and they disappear underneath/in it then come back out almost vertical. Does that sound like spawning to you guys?