what's your temp at & wc schedule? you should've had spawns by now, they look plenty mature & healthy. wonder if you ended up with an all male group. I finally accepted that there's only 1 female in my group. she started out spawning with one male & after many, many eaten attempts she kicked him out hard & switched to another male. the original male, I call "the Stalker Ex" because he kept fighting to get back in on everything. but when she booted him, it was eternally Over.
;-)
once she started spawning, she kept on like clockwork. sometimes only 2 weeks apart. the very longest pause, maybe a month.