craig_will2513
Aquarium Advice Freak
hi all i have a juwel 125. it has a built in filter collum in the right hand corner of the tank. at the min it has all the normal filter sponges in and some ceramic rings. as it was a tropical tank i converted my self iam not sure that the media in it now is very good.. this is because i have a massive nitrate problem at the min. what i want to know is should i remove all this media thats in it now and what to replace it with.. i know some people would say use live rock rubble but i have a few questions on this. 1 does the lrr need light at the filter box dont get any and 2 would i need anything els in the filter many thanks in advance