Can spraying Lysol in the air excessively over a fish bowl kill a fish?

Yes. " * Poisoning by this chemical is possible by absorption, inhalation, or ingestion in large quantities. It has been speculated that this chemical may be carcinogenic, though results are currently under debate. Practice standard safety measures when dealing with this product. Limit exposure by inhalation, ingestion, or absorption. Household versions of this chemical, however, are often diluted and the risk is far lower than with concentrates, but it can still pose a danger if used improperly. Use only in a well ventilated area in accordance with the directions. If poisoning has occurred, contact your local poison control office and seek immediate medical attention. This chemical should not replace the use of soap and water and some bacterial resistance may occur with over-use of this product. * Versions of some chemicals related to this product were once used as antiseptics, etc., on humans, however, this is no longer considered safe. Do not clean wounds with this product as it is poisonous. "