BIO Wheel

Q. Do I need a BIO-Wheel?

Yes. Biological filtration is critical to the success of any aquarium. If your system has a BIO-Wheel, a culture of ammonia-neutralizing bacteria will grow on its surface. The bacteria will thrive because as the BIO-Wheel provides "wet/dry" biological filtration. As it rotates, the bacteria are nourished by the larger amount of oxygen in the air and water.

Q. My BIO-Wheel isn't turning. What should I do?

If your BIO-Wheel has, in fact, stopped completely, it is probably either because the BIO-Wheel is out of position or because water flow is not strong enough to push the BIO-Wheel.

If water flow is reduced...

  • Unplug your system.
  • Inspect the BIO-Wheel carefully to make sure that there are no obvious obstructions to rotation and that it spins freely when in proper position.
  • Remove the impeller housing and magnetic impeller assembly and make sure the impeller assembly is clear of any obstruction and free to rotate. With a clean cloth or brush, clean the impeller, intake tube and impeller housing.
  • Make sure your aquarium is filled to the bottom edge of the aquarium frame or the level specified in your owners manual.
  • Restart your system. NOTE: If you have a power filter that hangs on the back of the aquarium, be sure to fill the filter box with water.

Q. When should I clean or replace my BIO-Wheel?

Unless it becomes damaged, there is no need to ever replace your BIO-Wheel. A BIO-Wheel actually improves with age. 

Q. My BIO-Wheel is making a lot of splashing noise. Is that normal?

When a BIO-Wheel is new, it has a tendency to rotate more rapidly, which can cause a "lapping" noise. Over time, as the bacteria culture grows, the BIO-Wheel will slow and operate more quietly. (To immediately reduce the sound of water hitting the wheel, grab each end of the wheel simultaneously and gently turn them in opposite directions. This will cause the incoming water to contact one side of the wheel before the other, reducing noise level.) 

What's the difference between 350 and 350B power filter.

Asked by: Wiltron
Thank you for your interest in this Marineland product! B is just a variation code. In this case it implies a second version of the 350. Only difference would be packaging. Everything else is the same.BREX
Answered by: BREX
Date published: 2016-12-05

Do you need to use any tubing if using the Penguin ?

Asked by: Drica
Thank you for your interest in this Marineland product! This is a hang-on-the-back or HOB filter. They come with everything they need for you to get them up and running in just a few minutes, including an intake tube with a strainer. No additional tubing is necessary.BREX
Answered by: BREX
Date published: 2016-12-05

Just installed a new Penguin 350. Horrible humming sound! Have to turn TV up. I do not mind the wheel splashing sound, but this humming is horrific! What is causing this? Can I make it stop?

Asked by: onlybigpaws
We are sorry to hear you are having this issue. If you have the filter plugged directly into the wall, and not a power strip with surge protection, you may be having some voltage issues that are affecting your filter. Voltage issues typically occur during periods of high use of AC or heat. If you are plugged into a proper power strip, then unplug the filter, remove the impeller, and the impeller housing, and check them for any issues. Make sure they are properly connected, then re-seat them. If you are unable to resolve this issue, please call us directly at 1-800-322-1266.BREX
Answered by: BREX
Date published: 2016-12-05

Do the biowheels and filters come with Marineland 350B power filter, is it ready to go when set up in tank?

Asked by: fishergirl
Thank you for your interest in this Marineland product! Yes, your first two cartridges, and your bio wheels do indeed come with the filter when you buy it. You just need to remove them from their wrappers, place the filter on your tank, fill it with water, put the cartridges and bio wheels into it, then the intake tube, and plug it in!BREX
Answered by: BREX
Date published: 2016-12-05

My bio wheel still will not spin. i have checked its alignment, restarted the system and cleaned everything. There is good water flow coming through. The whelk will soon about 2 rotations every once in a while. Filter is 2 years old. Please help!! 

Asked by: AhsokaTano19
We are sorry to hear this is happening! Here are some tips that usually work:- check the purple bearings at each end of the bio wheel. Make sure they are properly in place, clean them, and rub a thin smear of silicone lubricant on them.- remove the impeller and impeller house; remove debris, algae, hair, etc., from both, soak the impeller in distilled vinegar for 15 minutes, swab out the well of the motor with a q tip and vinegar, rinse everything well, re-seat all parts- using a "baby bottle" style aquarium brush, clean out the intake tube- water level in tank should be to bottom of top frame- using a q tip only, no detergents, etc., swab gently between each fold on the bio wheelIf you are unable to resolve this issue, please contact us directly via 1-800-322-1266.BREX
Answered by: BREX
Date published: 2016-12-01

I put 2 penguin 350's on my new 55g saltwater fish only. I keep reading that they are bad "Nitrate Factory". Is this true or have I done the right thing.

Asked by: Rickywthomas
Thank you for contacting us. A lot of marine hobbyists believe that hang-on-the-back or H.O.B. filters are not good for marine tanks. This is not true. They will only create a lot of nitrates if you do not maintain them. Just take them apart and lightly clean out the filter box, intake tube, and impeller on a monthly basis. If you are using the cartridges, replace them once a month. I would also add the media containers filled with bio beads or other biological media. Any filter will create nitrates if not properly installed or maintained.BREX
Answered by: BREX
Date published: 2016-11-28

My bio wheels are still noisy. The sound, I believe, is coming from the bubbles it forms as they turn and pop in the enclosure. It goes quiet for maybe a few hours after adding more water but starts back up with the noise. Please help.

Asked by: StillCantSleep
We appreciate your contacting us! A new filter will have noisy bio wheels, but once it has absorbed water, the sound is pretty minimal. If it is only a couple of days old, take the bio wheels out, and float them in the tank. If it is older, like a few weeks, then take the unit off of the tank, and clean it out well to make sure the wheels are spinning properly. Your water level should be to the bottom of the top frame of the tank to help prevent noise issue and maximize filtration. If you have a bubbler in the tank, near the intake tube, try moving it further away as well. If you are unable to resolve the issue, please call us at 1-800-322-1266 so we may troubleshoot it for you.BREX
Answered by: BREX
Date published: 2016-11-28

i have a emperor 400 new, at what speed should my bio wheels turn at

Asked by: Yoggie
Hi Yoggie! We appreciate you contacting us! There is no particular speed that they should turn at - they should simply turn. They can even start and stop as long as they turn on their own.BREX
Answered by: BREX
Date published: 2016-11-23
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