Hi peeps. I was just wondering if anyone could shed some light on how I remove the internal filter from my rio 125? Thought I'd ask befor being heavy handed and potentially breaking the glass. The reason I want to remove it is there is mould between it and the glass I can't remove and figured replacing it with an external filter would ve much easier. On that subject also, can anyone recommend a decent external filter for my tank that is in the 60£ to 80£ region? Or cheaper lol. Many thanks. Ben