Best bio-media

Blinky

Gone
Jun 22, 2004
2,995
0
0
51
Toronto, Canada
Visit site
I just bought a FilStar XP2 canister filter - I recently converted my 45g to real plants and I want to move the HOB filters I have on the tank to another tank and use the canister on the 45g - and I'm wondering if anyone has opinions on the best media to use.
I know that with a heavily planted tank I won't build up as much of a bacterial colony as I would with just fish, but I'd still like to be using something high-quality.
The place I bought the filter told me that there was bio-media in the box, turns out there's mechanical (sponges) and chemical (basically carbon) but their 'bio chem star' media isn't included. So now I'll be going back to the store to get biological media and I wondered what's best to use in a canister - should I stick with the FilStar 'stars', or is there something different I should consider?
Here's the product description:
"Bio-Chem Stars are a biological filtration medium that provides a substrate for the optimal growth of beneficial bacteria. Their internal pore structure is formed under a patented process that creates a 50-70 micron internal pore network. This pore size is optimal for the growth of beneficial bacteria, including nitrifying bacteria that remove toxic ammonia and nitrite. It also allows the best oxygen and water transfer through the star, which keeps bacterial colonies healthy and active. Because of this complete internal colonization, Bio-Chem Stars are the most efficient biological filter medium"
 
In my heavily planted 72 I just packed the canister with sponges. A bit of ceramic rings but almost all sponges. I personally feel that the sponges provide enough biological filtration combined with the plants.
 
Best in this case is a very arbitrary term. Highest surface area would colonise the most bacteria, and therefore be the "best" for a big hardy bio-filter. This would be micro-pore media such as Efhisubstrate or similar sintered glass products. The down side to these is that they plug up and should be replaced periodically. The "best" in terms of low maintenance, and high effeciency would be some of the ceramic type medias like Efhimech. These have a good amount of surface area (although fractional compared to sintered glass), but don't have the micropores to clog up, so they can be periodically rinsed (carefully of course) and used indefinately.
The "best" economically would be sponges. they colonize bacteria quite well and serve as mechanicle filters at the same time. they are dirt cheap and last indefinately. In a heavily planted tank, I would go with ceramic stars/ noodles, or just stick to sponge. Just remember that bacteria will colonize well anywhere that has a good surface area to cling to and has waterflow and oxygen.
Dave
 
daveedka, while reading through the discussions the last several weeks, I have been wondering.... when referring to sponges, is everyone referring to those that are included with the filter or literally....sponges? What type of sponges, specifically? Thanks.
 
daveedka, while reading through the discussions the last several weeks, I have been wondering.... when referring to sponges, is everyone referring to those that are included with the filter or literally....sponges? What type of sponges, specifically? Thanks.

At least for me I am refferring to aquarium filter sponges, I use several different brands shapes and sizes, and am always looking for new options. I don't use standard sponges from the grocery store or big box, because they sometimes have built in anti-this or that stuff. It is easier to buy from an aquarium supply than to figure out which sponges are safe elsewhere. For the most part I buy big Al's bulk filter sponges on-line. and cut them to fit my needs.
Dave
 
Thanks Dave. I was checking out the ones you refer to on Big Al's site. 'bout the best choice I have found so far. I don't know why they seem to be so difficult to find, at least around here. You make a good point about "built-in anti this or that". I had not even considered that problem. Thanks again.
 
AquariaCentral.com