This maybe some new info for some, but for those who don't know Hydrogen Peroxide will save fish in power outage emergency. Just use a cap full per/10gallons(contact LFS). I don't no about the long term affect on plants(contact LFS), but I will rahter replace plants than fish. I only used it for a week two years ago during a week long power outage we had in Maryland. Just trying to give some useful info. Happy fish keeping!