After i graduated from oxford university as a scientist, i bought a goldfish. It appears to be floating and not moving... Could it be dead? Or is it sleeping? Ive poked it with a stick a few times, not even a budge! Should i take this special fish to the lab and analyse the brain nerves to see how it functions? What is also amazing about this fish is that it has white foam around it, is this a defense mechanisim of some sort? I've asked everyone in the lab and they just laugh, i don't get it.