Just so everyone knows, it's actually common practice to assist non requiem, egg laying sharks in hatching from their egg if it is a late bloomer. It only has so much yolk it can feed on, that will only sustain it's body for so long, and will starve to death if it cannot hatch on it's own. You have to be very careful when doing so though. If you accidentally lift the egg above the water too far "water passes through the egg, think of the casing like a very fine mesh" and create an air bubble inside of the egg, then the baby shark will suffocate. This shark was definitely ready to hatch and nothing was done wrong here assisting it. I've kept sharks for around four years now. What they did to help it was okay. On another note, kudos to having a nice healthy baby banded cat shark!