Athanasios k.
23rd June 2013
![Easy Life - Blue Exit - 250 ml](https://www.aquasabi.com/media/image/product/3445/md/easy-life-blue-exit-250-ml.jpg)
Easy Life - Blue Exit - 250 ml
It worked for me so far (with a bit extra dose). No problems with the biological filtration. The main disadvantage is the 15 days of no water changing .