hi ever one,thanks for the help over the last couple of days
though been posting them in the wrong place
.think ive got the hang of the site now(3 days later lol) can i pick your brains a bit more(please) ive got a ufo aqua 700 with built in fillter in the hood.(at the back)1 side has in it.black sponge,white wool pad and ceramic noodles the other side has the same but instead of the noodles its got carbon bags.can i replace the carbon for noodles,if so will it afect my nitrite levels as i have just got them spot on after cycling .many thanks 


