does your air pump have a valve on it? (usually a little plastic black bit with a screw to increase/reduce airflow) you could try turning this down.
Some light bars are quite waterproof. Others are not. i havent used a Fluval tank so not sure, but i would have thought it should be OK.
Another fix would be to buy a condensation tray that sits between the water and the lights. This also (as the name suggests) stops condensation mucking up your lights.
Thanks timmy, yes the air pump is currently connected to an air flow valve and i have kept the flow to a minimum where it is enough to provide enough surface agitation. The end of the tubes have a plastic casing on them when they connect to the hood as shown below in someone else's image (hope thats not an issue referring to other people's images)
So effectively, sprinkle should not get in contact near the end points and only with the tube itself. Is that safe enough and can i stop being paranoid now?
Thanks