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Updated: 8 January 2013
We are selling K1 in a variety of size packed at the request of our customers.
You can now buy the bio media directly through out online shop HERE
How much bio media do you need?
Each litre of the bio media may be able to handle up to 10 grams of feed per day.
You may find it handy to use our biofilter sizing calculator here. Download it. It is Free!
Keep in mind we have large air stones and air pumps we can supply for your biofilter. Let us know in an email.
Regards
Paul
[...] here. Or if that is too difficult, just use a 200 liter blue drum with an air stone in it with your kaldnes, no design [...]
K1 is super but expensive. I need effective bio media for my budget.
I’m interesting, can I make similar bio media from cutting drinking straw ?
What do you think?
Caca
Hi Caca,
Thanks for the question, it is a good one that keeps coming up.
The short answer is yes you can use any number of other inert media to use in your biofilter. I say inert, meaning it is not reactive. You will find that straws float and when you put a bunch of them in a drum or bucket, only the bottom ones are in the water the rest are floated up out of it. In that case you may want some type of mesh on top of the straws to weight them down into the water until they grow a little bacterial film on them.
I have heard, not used, plastic soda bottle caps as a media works well enough but you have to poison yourself with many litres of it to build a filter. Or your friends can contribute to the collection, like milk bottle caps and the like. Again, these are positively buoyant so will float until they grow a bit of muck on them.
It is difficult to say which ones will work well, but test them out in water first before committing. Some of the plastics are “hydrophobic”, in other words scared of water and will repel it. If that is the case, that particular plastic will not be much use to you at all. Dip the plastic in water and if it comes out dry it may not work or it will take much longer to grow the bacterial film on it securely.
One very inexpensive option for a “static packed biofilter” is to find a plastic manufacturer near you that does lathe work with plastics. They generate large volumes of “plastic swarf” which is the curly strips of plastic that look like knotted ball of string. We gave that a go about 10 years ago and it worked well and the best part it was FREE..!
I say give it a try if that is what your budget allows for and see which will work for you.
Regards
Paul
[...] Air Diffusers or Air StonesMay 31, 2012K1 Bio Filter Media SaleMay 29, 2012When Your Flow Rate Goes WrongMay 25, 2012 Members TalkEarthan Group: Thanks Harry. As [...]
hi i was just wondering, i said to someone why cant you just use bioballs and they said because bioballs do not fluidize. what does fluidize mean/ what did they mean?
Hi Bubbles,
Fludize means the media in moving in the water. Bio balls are heavy so do not move well and are often used as a submerged static filter or media for a trickle type of filter.
We sell K1 media which works very well in a moving bed type of filter and it is often the choice of most aquaculture operations.
Regards
Paul
[...] it was of uniform size, you would have a surface area of about 75m2/m3 (very low). If you are buying bio media such as kaldnes like we sell, the manufacturer will indicate what the specific surface area (SSA) of the media is. However, [...]
If making one KF these filters do you still need to use other filters like the outside one that hangs on tank
Hi Alan,
If you are refering to aquariums, you may still need some dacron or fine solids filtering.
Regards
Paul