erk419;3916405; said:Yes I agree to a point that bacteria lives everywere in a tank. I didn't quit word my first post right. But I'm talking about the majority of the bacteria and its a really big majority. The BB does not do good at all in the water because it constantly moving so its in a desprate state to try and find something that it can attach it self to. Inside the tank itself theres very few places that it can attach itself to because the water always moving. So there for if it trys to attach itself to the glass it will eventually get swept away. That why with filter media we use things like sponges and ceramic rings that have pours that the bacteria can go in and won't have to worry about getting swept away. The BB also likes a dark area and a filter is always dark inside. It also needs a lot of Oxygen and the filter is the perfect place for this. I've read quit a few articles on this subject. If you don't believe me do a search and read up on it. Also take out your sand and ornament an test your water the next day. Then put those all back in and take your filter media out and put brand new in then test the next day. I'm not here to argue with you about this I'm just stating the facts.
LD50;3921404; said:Dude, idk where you got your microbiology info from but your mistaken. BB will live on any surface, they live on your skin right now as you read this. On your key board, mouse etc. Light (except concentrated UV's) and water circulation have squat to do with growing your bb. Nutrients, O2 and surface area have everything to do with it.
erk419;3921414; said:As I said before I know there is BB ever were in your tank but the big "majority" of it is in your filter. That is why if you have a filter with two pads you don't change them both at the same time you do one then wait and do another.
vfc;3921735; said:Do you know for sure that the "big majority" is in your filters?
I believe I have just as much BB (both aerobic and anaerobic) in my sand substrate as I have in my two HOB filters on my 125G tank. However, I can only speculate as I have done no scientific study that measures the BB count in each location.
bitteraspects;3923756; said:luckily theres an easy test for that.
pull all the filters off your tank, and see what happens.![]()