I don't know, that is what is weird to me. The tank has been at about 84 the whole time, and I did the daily water changes very very gently. I did occasionally feed Bellino a few white worms, but I don't think that would make them hatch late.
Made a realization yesterday: I hate been confusing micro worms and white worms. I have white worms, not micro, so I decided to order some walter worms from Basement Bettas. So I will have that and bbs, and frozen bbs, for the fry.
Oh I almost forgot, does any one have tips on growing the fry at a faster rate? I just found out that my mom is making me go on a two week workshop/camp thing this summer :(