This morning I went to feed the fish, to feed the fish; to feed the fish (say it in a tuneful way).
However, when I lifted the lid of the tank, I found the Glass fish, and Shark fish had both died - as they were floating sideways on the surface of the water...
Now I know our water is OK, as we've taken samples to the Pet shop and they've confirmed it's clean. And we feed them twice a day as required. So I've put it down to bullying, as Simon's two new fish are still alive, and they're the same fish type as one of the veterans of the tank.
From the evidence, I think we have a clear case here for murder, with the 3 Guarami's the murderers.
So let's stop this bullying at once, and put the remaining fish up for trial...