Does anyone have experience feeding garden slugs to stingrays? It would be nice to supplement their food, but I'm wondering if they are toxic to stingrays (or other fish).
Depend on what you use on your garden ( fertilizers , pesticides )
I would suggest you do not. Pick up a slug and even under running water the slime does not come off, think some of this slime can be harmful with some slugs....would not risk it. I expect the fish that do eat slug pick them up once the slug has died and slime come off.. I could be totally wrong but why risk it with so many foods avail.
A better question is will your fish eat slugs. Most fish won't touch them. I take dead ones out of my pond all the time.