I'm about to look up some videos on the good ole youtube to figure out what all a grindal culture needs. If they are anything like meal worms, I can't handle it. If they are like earth worms, I'm okay. Meal worms frighten me. Haha! My adults in the past week have started to ignore their microworms in favor of the brine shrimp and bloodworms they get on alternating days (other days we get flake food or no food, but I've not been fasting them as much since they've really started to court). What temp is your tank? Mine feels cold to me, but the thermometer is reading around 79 (I think, lights just went out so I can't double check).