Air in aquariums
Hello. I have rather silly question. Why does one need air pump and air supply in to the aquarium rather than fish need it.
It is my understanding that the air only serves to disrupt the surface of the water, where the bubbles break at the top of the aquarium. this disruption increases the surface area of the water which allows more oxygen transfer into the water :)
im sure im atleast a little off base but thats the rough idea :) Im sure Ron, Lupin, F4A or the like can offer a far more intelligent explanation!
That's how I understand it also. I have air pumps in both my tanks because I like the way it looks and my fish like to play in the bubbles.
The reason that air is run into the tanks is four-fold. (1.) To provide surface agitation and enhace the CO2-O2 Transfer. (2.) Many filtration system use air to provide water flow to make the system work. Examples are ugf's (undergravel filters), sponge filters, box filters, and others. (3.) To provide current in the tank. (4.) Some use the bubbles for ornamentation, it just plain looks nice.
an air bubble has a surface area itself and therefore saturates oxygen into the water as it rises. It will cause some surface agitation but it does so much more than that. In any fish tank there will be a greater ammount of oxygen at the top of the tank and the disolved oxygen (DO) decreases the deeper into the tank you go. This is why shallow tanks do not need aeration as much. A deeper tank should have aeration do that oxygen will dissolve in the deeper portions of the tank more. ALso note that an airstone is meant to break up air instead of releasing large bubbles. This is to allow a greater surface area of bubbles and more oxygen absorbtion into the tank. So it does a lot more than just disturb the surface and make the tank look fun. :-)
and I will answer portion of my question myself :)
most importantly you need air in your aquarium to support your natural cycle meaning bacteria that thrives in your gravel and feeds on ammonia in your tank.
I absolutely hate bubbles in my tanks. The only bubbles I see rising from the floor of a lake are hazardous methane bubbles. I prefer using sumps to agitate the water creating the exchange and huge, I mean huge, power heads to disrupt the flow of water all over the tank.
Using powerheads with massive gph is ok in some circumstances. I can just see my dwarf cichlids with teir faces smashed against the glass because of heavy currents. lol
Do you have a reference which you could direct me with respect to your post?
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