Skimmer Solved

Tuesday 3rd April (Update)

The skimmer had produced not a single bubble. Problem solved by removing the large wad of foam and straightening the air hose. A million bubbles filled the tank but I'm told by loads of people this will clear in time and is nothing to worry about.

In fact, all the bubbles seem to have attracted some of the flora/fauna to extend long tendrils which are like spiders webs.

This is a pic (not very professionally taken) of the tank as it stands now. It's not as crowded in reality as it looks.