I have an Electric Cat over 1 foot long in an 80 long i have had him by himself for 10 years. Could i add a few large Chaca Chaca Frogmouth Cats to the tank. Would the electric kill them. He does not like plecos, but he leaves some smaller convicts alone, i think he is just to tired and slow to chase them anymore and now he just ignores them! I am also thinking he might bother the Chacas at night when they are moving around.