Thats horrible to hear ,i just lost a 14 inch oscar. Never thought it would knock off the whole light hood. Light fell in the water,popped the house breakers on the electric box. Light doesnt work now,had to buy a new one. But on a good note the LFS i got the new light from had another big Oscar i bought.
ouch, it always hurts. Especially when you "know" the tank is safe. I've had it happen too, so sorry for the loss. That pics is amazing that that tiny $" fish was a whole ARO! So cute. Sorry buddy.