How much filtration for a tank
I recently started a 144 half circle saltwater aquarium. I have a small eheim canister, and a cascade filter all rated for 150 gallons. I have just added another eheim canister wet/dry filter but i have noticed that with the new filter the water returning resulting in causing fine bubbles (almost like salt particles). Is this too much filtration for the tank? I will take any suggestions.
I don't believe it's too much filtration, I'm a firm believer in having several filters or one rated for a tank much larger than the intended tank.
However, in your case I will say that the wet/dry is causing microbubbles and with SW tanks, specifically with fish, this is not good. These microbubbles can actually kill the fish over time.
With a tank that size I'd personally set up a sump for the filtration, so I'm not sure what to suggest for replacement of the W/D filter.
Thanks for the response. I just took the new filter offline.. I will see how it does and i am considering take another filter offline and trying to get this one going again..It is suppose to be rated as a top filter.
I agree with MattD.... canister filters alone are not going to be enough to keep a tank of that size running and stable. Large tanks such as that should really have a sump system along with a protein skimmer and UV if you can afford it.
At very least, please be sure there are power heads in the tank to provide enough circulation in that tank. You will find you'll probably need up to 4 powerheads to get good circulation.
Canister filters can only do so much, and to be effective all of the water has to push through them. Spray bars alone are not going to generate enough circulation to move all of that water through a canister filter. Without the powerheads you will eventually notice "dead spots" and can expect cyano bacteria blooms as time goes on. Nitrifying bacteria need plenty of circulation to grow and reporduce at a healthy rate to keep up with any waste levels in the tank.
Hello. Thanks for the response. I do have a protein skimmer runnign which i have forgot to mention. The reason i got the the eheim canister wet/dry was because it does everything that a regular wet/dry does. It suppose to promote the health and growth of nitrfying bacteria. I am wondering why i have the microbubbles forming.
Again thank you for the input.
Depending on the water's surface tension (surface tension is created by high organic levels, oils, phenols, medications, etc, etc) most protein skimmers will dump microbubbles back into the aquarium.
You can pinpoint the source by turning off filters one by one until the microbubbles subside. try combinations of the filters and pumps.
for us to tell what is causing it we would need a good video (mpeg or avi) of the tank showing the filter outlets somewhat up close.
Hello Dawn... Thanks for the response. After taking the wet/dry offline the microbubbles have virutally disapperared. I am going to try and turn off each filter and start with the wet/dry and work my down to see if i can get a good balance and see what the issue may be.
Thanks for the help.
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