kuhlis sucking on frogs?

[Donna]

OK, yesterday one of the kuhlis was doing that grazing/sucking thing across the top of an African Dwarf frog, who didn't seem to mind in the slightest. Was the loach maybe eating shedding skin? (ADFs will often eat their own sheds.) The frog was not visibly in shed, but maybe the kuhlis have been keeping them groomed.

[starsplitter7]

I am not sure. I have seen my fish doing all sorts of strange things. I have watched my whisker shrimp (looks like a ghost shrimp on steroids) groom my otos, and I also watched my Otos go down the back of my whisker shrimp grooming it -- removing the Algae. My badly behaved Pleco was sucking on my bichir. I keep an eye on him making sure he's not getting too interested in the slime coat -- no hickies for him.