They recently just started working on this as a side project. They breed Marine ornamentals so I think they just had the rotifers on hand. I know they produce the brine naupli as well, not sure if they tried it. I’ll see if I can get some info and report back. I don’t think they were cutting them but could be wrong, that’s a great idea. I texted one girl a link to your article and I’m sure she will get some good info out of it. As far as water chemistry, have you found any they like in particular other than the warm water?