How do I get through the tunnel below the cryonics room?

Hint 1 of 17:

There's a creature down there, and it's very hungry.

Hint 2 of 17:

Of course, you don't want to be the one to feed it.  You're going to have to
look for something else to send down to the tunnel.

Hint 3 of 17:

Read the monitors on the wall.

Hint 4 of 17:

The cryofluid in tank 1 is very low.

Hint 5 of 17:

And if it runs out, the cyberaptor in there will wake up.

Hint 6 of 17:

Waking up the creature is a good thing, actually.

Hint 7 of 17:

So open the iris hatch and then drain the fluid with the controls on the wall
opposite to the entrance to the room.

Hint 8 of 17:

Eventually, the cyberaptor will wake up.  Try fighting it.

Hint 9 of 17:

After a bit of fighting, you'll get an entry in your journal -- the
cyberaptor seems to have regenerative powers, so you can't kill it.