I was cleaning my fish tank and my dog (5 month old German Shepherd mix) took a snap at one of my ferns as I was taking the piece of wood out. She got some of it and now has diarrhea. I couldn't find anything about aquarium plants and toxicity to dogs online probably because they don't mix often enough for it so I was just wondering if anyone here has experienced this or knows if this is an emergency situation or just a upset tummy.