Thanks for the tips i tried filter floss with no results kept changing it everyday and doing a 50% waterchange everyday for over a week and it would clear up for a few hours then get cloudy again.
I knew it could bena bacterial bloom but didnt think it was after leaving the light of for a few days nothing cleared up but then i was in my lfs and purchased a small 200L 9w uv sterilizer made by fish r fun, it looked cheap and was cheap at 15quid but i though id give it a go.
After plugging it im i realised the actual flow was little more than a tricle but i presumed this would be good as the water would spend more time passing close to the UV light, anyway by this time my water looked like it was mostly milk so i set it up saturday night nd left it running and checked sunday morning but it wasnt noticably cleared but i left it running sunday allday and night then woke upmthis morning to a crystl clear tank! I couldnt recommend the steriliser more, for what they cost they work amazingly well if anyone else has this problem id highly recommend them.