Hi I have a biorb classic 60ltr which I purchased and had working fine - I have given to my son and in transportation the air hose tubing has become detached from the base of the bio orb it has a L shape connector which doesnt seem to fit back in the base air pump tubing inlet point - how do I reattach this please as water leaks out from this point ? Does the air hose need to be run through from inside or should it just reattach from outside at the designated point. Sorry hope this makes sense. Would be grateful for any help