My brother has bought a 300L tank and we are just setting it up. Bit different to our first smaller tanks and we just wanna check. It's got a trickle filter (we think) and he has been supplied a bag of ceramic bio rings, some bio balls and a bag if high grade activated carbon. 1st question: where does all this go? In the trickle filter? And 2nd, how long will a fish less cycle take?