im looking at a new filter that's called a hydra stream Its gets rid off buying rofos phosphate . as this filter get rid off ammonia nitrate and nitrite Its only been In the uk for a year the lfs said they have been trying It out for a year and said It Is very good and now sell them and If It was no good would not sell them It saves u a lot of money over the year as u only have to change filter media once a year as you can clean the media and that It does work I would like to know If this as good as they say and If anyone has used one thankyou dave
