what is, and how does it work?

[Gothyc_samurai]

wet.dry filter, always wondered never find how

 

[brianp]

The bacteria responsible for converting ammonia to nitrites and then nitrates are "aerobic". Hence, the more oxygen they are supplied with, the more actively they metabolize nitrogenous wastes. The atmosphere has a much higher percentage of O2 than water, so the objective of a wet/dry filter is to bring the bacteria into contact with the atmosphere as much as possible while still covering them with a thin film of water. So, unlike the media in a canister filter, wd media is not submerged..rather, water is sort of dripped over it. There...now you are an authority on the subject.

 

[Fish Eat Fish]

The bacteria responsible for converting ammonia to nitrites and then nitrates are "aerobic". Hence, the more oxygen they are supplied with, the more actively they metabolize nitrogenous wastes. The atmosphere has a much higher percentage of O2 than water, so the objective of a wet/dry filter is to bring the bacteria into contact with the atmosphere as much as possible while still covering them with a thin film of water. So, unlike the media in a canister filter, wd media is not submerged..rather, water is sort of dripped over it. There...now you are an authority on the subject.

yup that about sums it up. It is much more efficient than standard bio filtration. Its the same conceprt used in the bio wheels...except it isnt squeaky

 

[cassharper]

except it isnt squeaky

Lol, I hate biowheels.

 

[FSM]

and usually the wet/dry bit gets put in a sump.