cheers Si, its needing trimming weekly though! I would recommend using some Purigen (seachem) in your filter, Si. I started to use it as AC, claimed his water clarity was great with it. It looked clear enough to me last time i saw his tank...so i bought some to see what he was on about. Honestly, it looks as though i haven't got water in my tank now! Well worth the money for he water clarity alone.