I want to set up a second filter (external) can I just pop a whole new filter onto my current set up? It doesn't need to be cycled or anything does it?
I am thinking this one? http
/www.amazon.co.uk/Fluval-A206-205-External-Filter/dp/B000HHJI90/ref=sr_1_2?ie=UTF8&qid=1325889304&sr=8-2
I am thinking this one? http
/www.amazon.co.uk/Fluval-A206-205-External-Filter/dp/B000HHJI90/ref=sr_1_2?ie=UTF8&qid=1325889304&sr=8-2
I am curious... I currently have an internal Fluval 4. 







