Good buy water change
- Thread starter arwen
- Start date
I say never. Nothing is more beneficial than an old fashioned water change. Also you have to think what exactly do these magic chemicals ur adding to your tank consist off? It may be creating a whole new problem in your tank.
^ that's what i was thinking, other than anaerobic bacteria what else can complete the nitrogen cycle?
examples of these denitrators?
examples of these denitrators?
the koi ponds have anoxic filters that are clay based with some laterite. The theory in a nutshell, you have decent water movement thru a basket, the BB consume Oxygen and create nitrate the same way they do as aquarium, this occurs in the first few inches of the basket. Deeper in the basket the water becomes anoxic (less Oxygen) not anaerobic. There the bacteria consume nitrate, and the by product gases off, effectively reducing nitrates. Some of the stories I have heard down to 2-3 water changes a year.
Would love to see if some of the bigger system out here would be able to pull off this in an aquarium setting.
http://www.mankysanke.co.uk/Introduction.pdf
Would love to see if some of the bigger system out here would be able to pull off this in an aquarium setting.
http://www.mankysanke.co.uk/Introduction.pdf
Dan nailed it though, it's not only about what is being removed but also what is being replenished. I never see the need (even if one becomes available I will not use) an chemical or filter to replace water changes entierly. Plants can help keep perams cleaner in the between water changes but water still needs changing. I see drip systems becoming more efficient/commercial.
very interesting.
http://en.wikipedia.org/wiki/Denitrifying_bacteria
says that denitrfication only occurs in anaerobic conditions, but that wiki article is uncited so take it with a grain of salt.
at article is confusing because it clearly trying to explain the nitrogen cycle to laymen and really beats a dead horse at times.
what i gather from it tho is that in the zone c bacteria can break down ammonia straight into nitrogen by taking it's oxygen molecule. but if there's some oxygen there as there is in an anoxic environment then why would it choose to break down the ammonia instead of the oxygen that's there? i would think that happens in an anaerobic condition, but is that artcle saying that in an anaerobic condition the bacteria can only utilize nitrate?
http://en.wikipedia.org/wiki/Denitrifying_bacteria
says that denitrfication only occurs in anaerobic conditions, but that wiki article is uncited so take it with a grain of salt.
at article is confusing because it clearly trying to explain the nitrogen cycle to laymen and really beats a dead horse at times.
what i gather from it tho is that in the zone c bacteria can break down ammonia straight into nitrogen by taking it's oxygen molecule. but if there's some oxygen there as there is in an anoxic environment then why would it choose to break down the ammonia instead of the oxygen that's there? i would think that happens in an anaerobic condition, but is that artcle saying that in an anaerobic condition the bacteria can only utilize nitrate?
anoxic = no oxygen
a deep sand bed in a reef system is set up to do just that. a plenum does the same thing.
a deep sand bed in a reef system is set up to do just that. a plenum does the same thing.