FAQs on Freshwater
Biological Filter Media
Related Articles: Establishing Cycling, Freshwater Filtration, Know Your Filter Media, A
Concise Guide to Your Options by Neale Monks,
Setting up a Freshwater
Aquarium, Tips for
Beginners, Water Quality
and Freshwater Aquariums,
Related FAQs: Establishing Cycling 1, Establishing Cycling 2,
Establishing Cycling 3,
Cycling Trouble-Fixing, &
Environmental Disease, Nitrates in Freshwater Aquariums,
Ammonia, FW Nitrites, FW
Nitrates, Chemical Filtrants,
Bio Balls or ceramic rings, 3/14/11
Good morning team
Hope all had a great weekend.
I am considering adding additional material such as Bio balls or
ceramic rings to increase the amount of beneficial bacteria in my
Firstly is this a good idea?
<It has it's pluses and minuses. Are you having an issue with
ammonia/nitrite now? If not the addition of bioballs is not going to
change much as the bacterial growth is limited to it's food supply.
See here for more.
What would you recommend Bio Balls or ceramic rings?
Many thanks in advance.
Re: Bio Balls or ceramic rings, FW 3/14/11
Many thanks for your reply.
One of my tanks (AquaTropic 80 (110L) planted tank ) with 3 neon tetras
and 2 male Colisa labiosa, 4 of the male guppies and 5 male Pseudomugil
furcatus has a nitrate spike since yesterday(even thought it is nearly
12 months old) 0.3 have been doing 2/3 water changes a day to keep it
<Nitrate? This is generally the end product of the nitrogen cycle in
FW tanks, and anything below 20 ppm is generally considered ok, and
that is from the marine side, freshwater fish are generally even more
Nitrates are removed by water changes, no bacterial process will reduce
it further with a few exceptions like a deep sand bed or commercial
denitrator. Now if we are talking nitrite, then you have a problem and
may benefit from more filter media for the desired bacteria to
Thought adding additional ceramic or bio ball in a bag at the back of
the tank might help to keep it stable.
<Will if nitrite is an issue, but not for nitrate.>
Many thanks again.
Re: Bio Balls or ceramic rings, 3/14/11
I meant Nitrite not Nitrate.
Thanks for your help.
<Then I would go with some added filter material, can't