These are the exact sinking wafers I currently use. Corys seem to enjoy them. I feed these twice a day:
1) During morning feedings
2) Via my automatic fish feeder, all crushed into powder, at 2 AM when the other fish are sleeping
The issue is, though, like you said, the other fish LOVE these. I have one Zebra Danio that, every morning, put an entire piece of a wafer in his mouth. It's so big, he can't even close his mouth! Haha, it's kind of annoying but funny at the same time... His gills and chin pop out too. So then theres the issue of, "are my corys getting enough food?", still unknown
