Would a AquaMedic Turboflotor 1000 Multi be TOO much for a 35-50G?

[Puff]

those lifereefs look really good. so in the case of a power failure they will keep going once the power is restored? so you dont have to worry about overflow or restarting it?

and it says it is up to 700GPH. so does it basically set itself to whatever your return would be? so if the water was coming back to your tank at say 400GPH, the lifereef overflow would roughly match that?