New Cirax For The Juwel Aquarium

[lilgreybear]

Hy to you all new to the site. I have a juwel rio 125 which i have had for nearly 2 yrs. I,ve bought the new cirax filter product but carnt find much information on it. Is it possible someone could tell me the overall effect on my tank and where abouts in between the sponges i should place this for maximum effect.