I sincerely hope this post doesn't go too close to the knuckle but I thought I should warn you all about the dreadful Aqua One external filter. I received one as part of the set when I bought an Aqua One Aquience tank and it is appalling. There is no way to semi-permanently join the hoses to the filter inlet and outlet pipes and the joints on the actual filter are poor to say the least. I noticed yesterday that one of the joints on the filter was leaking. When trying to fix it I knocked the pipe and caused a leak which resulted in about 50 litres of water all over my floor. It took me 5 attempts (and 3 leaks) before I was able to fix the joints again and even now the actual part that joins the hose to the filter is still slowly leaking. I have no choice but to buy a new filter. I realise that all this could be seen to be my fault but I have had filters from Rena, Eheim and Fluval before with no problems at all. I would never buy a filter from Aqua One again.