What about the fire?

Hint 1 of 8:

Go looking for water.

Hint 2 of 8:

The solution is very close.

Hint 3 of 8:

Look at the aquarium.

Hint 4 of 8:

Try to move it.

Hint 5 of 8:

Something is blocking it.

Hint 6 of 8:

Remove the piece of wood.