For aquarium fishUpdated 10 months ago

FELIWAY is completely harmless to fish. However, if you are using a FELIWAY diffuser (FELIWAY Optimum, FELIWAY Classic, FELIWAY Friends or FELIWAY Help!) as for any diffuser device, we recommend plugging the diffuser in room without an aquarium as a precautionary measure.

If your cat spends most of their time in the room where the aquarium is located, we recommend that you use the socket furthest away from the aquarium. This precautionary measure is intended to prevent the oily carrier from settling on the surface of the water. The components themselves are not classified as environmentally hazardous.