i have a D&D24g nano and have been advised to get rid of sponges out of rear filter chamber 1 and add lr rubble just wondered wud u put rubble loose in a chamber or add into filter net/bag/sock and how much rubble wud u say ie kgs, sure i will have plenty more question to follow when all setup

Hi there,

I have LR rubble in my rear chamber. There are inch size pieces about 2/3 the way up. My LR is loose, but the whole chamber is removable, which is useful as every now and again the rubble can use a rinse with disregarded tank water to rid of any detritus build up. Do away with any bio ball or ceramic filter media if you are going to use LR rubble. I keep the other 1/3 space for carbon and phosphate remover, which I keep in media bags. I also use a piece of filter wool at the intake of the rear chamber to scrub larger floating matter, which I change weekly so that nitrates aren't allowed to build up.

Cheers

Tiny Tank

thanks for the advise tiny tank i dump all the sponges and order sum rubble

Rather than order LR rubble, buy a smaller piece of LR then take a mallet/hammer to it. Works jsut as well and your not paying the extra for the 'rubble' in the name.

Rikki

cracking idea rikkia never thought of that might just do that,would u still put it in loose then?

thornyboy

Personally i'd bag in a very loose mesh bag, it will make rinsing in old tank water much easier.

Rikki

yeah i thought that as well easy to clean as well i thought cheers for that

I just took a 1.5 kilo rock out of my tank and took the hammer to it and used rubble sized between 1/2" to 1" got around 1 kilo from the rock.