Does Canister Filter provides Oxygen to the Fish Tank?

[harshsoni77]

Hi Guys,

I just bought SunSun Hw-3000 Canister Filter for my 150cm (5feet) Fish Tank, I need to know if my canister filter will provide enough oxygen to the fishes?

Or do i need to buy an Airpump and attach it with Airstone to provide more oxygen to my fishes?

 

[esoxlucius]

Your new filter will provide sufficient oxygen. Even more so if you have the return stirring up the surface, either with the adjustable duck billed attachments which are quite popular, or spray bar type set ups.

 

[duanes]

If the outflow goes to a sprat bar, or is far enough above the surface to cause ripples/agitation, or if not, and you attach the outflow to a venturi, or point it like this..

then its helping add oxygen.
If you have the outflow under the surface, and its not creating enough agitation to break surface tension, (depending on the type of fish) then..
an airstone may be needed.
Certain fish need much more oxygen than others.
Gouramis, bettas, bichirs or other swamp or oxbow fish usually don't require as much.
Cichlids like Geophagus, or other riverine species not a high amount, or cichlids from clean oligotrophic lakes may also need extra.
For my riverine cichlids I like this type agitation in the video below ,
Flow

 

[harshsoni77]

duanes esoxlucius I have outflow under the surface..

Please check the attached picture, Could you pls tell me whether One Airstone is enough for 150cm Tank?? or i will need to add one more airstone on the other side too?

I have 1 Geophagus, 1 Oscar and 2 Parrot.

Also, Could you please advise if i put Air Stone Bar 14cm long like a scale, will it give more oxygen then the Airstone ball which i have in my present tank??(as shown in the attach picture)

 

[neutrino]

In many cases filter outflow is enough, but not always. Factors include tank size, surface area (the more surface area the better, a larger footprint tank will take less per gallon to oxygenate than a deep tank with a small footprint), stock levels, and water temperature (oxygen capacity is higher in cooler water). As far as filter flow, turbulence adds more oxygen than smooth flow, so you can make a difference with how you aim spray bars, etc. Don't have a photo handy to illustrate, but think of a mountain stream running over rocks vs. s slow moving river-- the faster, more turbulent flow of the stream will be more highly oxygenated.

 

[duanes]

duanes esoxlucius I have outflow under the surface..

Please check the attached picture, Could you pls tell me whether One Airstone is enough for 150cm Tank?? or i will need to add one more airstone on the other side too?

I have 1 Geophagus, 1 Oscar and 2 Parrot.

Also, Could you please advise if i put Air Stone Bar 14cm long like a scale, will it give more oxygen then the Airstone ball which i have in my present tank??(as shown in the attach picture)

View attachment 1472686

This appears to be enough.
Is it a hospital/quarantine tank. with just the JD?

 

[eon aquatics]

i have a 1750 gph air pump and another air pump thats even more gph but i would really like a couple external canister filters because internal filters take up space and dont look very natural

 

[eon aquatics]

air strips are nice, you can just put a line of them along the back of the aquarium and it looks nice and such

 

[FLA]

I think you are good with with you have from an oxygen standpoint, but stocking density is an important factor here.

An important part of your question has only been partially answered, and I want to make sure you aren't missing something important that may matter to you later on. Properly functioning canisters do not add oxygen on their own. In fact they consume oxygen. The bacteria living in a healthy filter are consuming oxygen just like your fish. The water you are putting back in your tank is probably more depleted than when you pulled it out. As previously stated it is the agitation at the surface that is bringing oxygen (and removing CO2) to your tank. This is one reason you want the discharge near the surface or above if you can stand the noise. The other reason to keep your discharge near or above the surface is, if you had a crack or leak on the suction side of your lines you could create a supersaturation problem which would be lethal to your fish. Causing what is sometimes called "gas bubble disease" (though it is not a disease in the commonly understood definition). Placing above or near the water line helps degas this excess gas in the water.

In commercial RAS you would usually run your filtered water through a degassing or oxygenating tower to make sure that the water returning to your fish has an appropriate amount of oxygen. In aquariums we don't run at peak optimization so we give ourselves a little more margin for error.

 

[harshsoni77]

This appears to be enough.
Is it a hospital/quarantine tank. with just the JD?

yes it is