dechlorinate

Hello, I am reasonably new to the hobby and have a reasonably small around 30-40 litre tank and have a Syphon tube for cleaning gravel however, I get half way through cleaning and the water gets really low in the tankand I have to fill another bucket of water, dechlorinate, put it back in and...

Hi Everyone, I have just set up the filter in my Rio Juwel 400 and after just 17 hours my filter pad looked like the one you see below. How often do I need to change my filter pads? Is that normal after just 17 hours? How dirty should it be before I change it? It is that colour before I have...