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.) 

We bought a 20 gal marineland kit over a month ago. The biowheel moves slowly and stops for a second or 2 and spins again. We just cleaned the intake tubes and tried replacing the filter cartridgue. Is this normal or should the wheel turn continuously

Asked by: Amysue
This is basically normal. It is simulating a wet/dry trickle filter. As long as it spins on its own, it is working properly, there is no recommended speed. Don't forget to clean the impeller and the motor as well since debris affects those the most. BREX
Answered by: BREX
Date published: 2018-02-05

I just got a new Marineland 350 and it wouldn’t take in water, it wouldn’t pump, and it make this gurgling sound every time I plug it in. Yes, I have read the instructions and I have tried all the  technics in there and nothing will fix it.

Asked by: RAM3423
Make sure your water level in the tank is to the top of the tank. Then pull the intake tube, impeller housing and impeller out of the filter box, and re-seat them. Call 1-800-322-1266 if you need additional help. BREX
Answered by: BREX
Date published: 2018-02-08

I have the penguin bio wheel 200 filter. And inside looks to have spots for 2 filters. Not counting the bio wheel. Do I need to put 2 filters in? Or just one? 

Asked by: ijenn84
You only need one filter at a time. I add a second when the flow gets too low because the first filter is getting clogged. After two days i remove the first filter becaise the bacteria have populated the new one,
Answered by: Grady2000
Date published: 2018-02-03

I have a 3gal tank with original bio-wheel. Last Monday I set it up and let it run, with out any fish, for 24 hrs. After which I added 1 Betta. Everything was fine until this evening (Thursday). There are now large bubbles in the water. Is this ok?

Asked by: Luvbettas
If you are seeing these bubbles on the surface, this could mean you are over feeding, and have a protein build up in the water. A betta should be fed 1-2 pieces of food, twice a day, and that is it. They do not need a lot of food, and over feeding is extremely bad for them. We would recommend changing about 10-20% of the water and putting some fresh water into the tank. This should be done about once a week with a tank of this size in any case. Add AquaSafe Plus and SafeStart Plus with the new water. BREX
Answered by: BREX
Date published: 2018-02-02

When I going to clean the filter what do I do with the bio-wheel? I don't want it to get dry or lose the good bacteria. I thought perhaps put it in the tank? 

Asked by: plemme
You just set it to the side. It doesn't take long to clean the system, certainly not long enough to dry out so it will be fine. If you are particularly worried about it, place it in a clean, plastic cup with water. BREX
Answered by: BREX
Date published: 2018-02-01

Good morning - I have a Penguin Power Filter #75. The bio wheel is not spinning. We have set it up the same way as the video with come differences, our model does not have the two piece filter cover and we had to put the wheel together ourselves.

Asked by: DDBird
The Penguin 75 should have a one piece cover, not a two piece one. The bracket and bearings you do have to install yourself, and then you rest the bio wheel down into them. Make sure the water level in the tank is to the top of the tank, and that the filter cartridge is not clogged, etc. How well the bio wheel spins is dependent on the flow rate of the water through the filter. BREX
Answered by: BREX
Date published: 2018-01-31

How many watts does 350b and 400e use ?

Asked by: Sukhdeep
The Penguin 350 uses 20.4 watts, the Emperor 400 uses 19.2 watts. BREX
Answered by: BREX
Date published: 2018-01-29

The tube that takes water in is too tall for my tank

Asked by: Kennedy15
Then use only the intake tube and the bottom strainer, taking out the two middle pieces. Or you can use the middle pieces, but cut some portion of the strainer off, to make it fit. BREX
Answered by: BREX
Date published: 2018-01-29

Do I need a separate air pump with this filter? It seems to be blowing bubbles pretty well.

Asked by: Stone24
You would only need additional aeration if your tank is really overstocked or under maintained. Air pumps to provide twice as much oxygen as most filters. BREX
Answered by: BREX
Date published: 2018-01-25

my bio wheel spins unbalanced do I need to replace it

Asked by: fishy D
If it is able to spin on its own, no. Check your purple bearings and make sure they are installed properly and are clean. Also, you may want to take the filter apart and clean it as the flow rate of the filter is dependent on how clean the system is, and this directly affects the bio wheel. You especially want to clean the impeller and the filter box. BREX
Answered by: BREX
Date published: 2018-01-24

What position should the “door” (grey switch) be in? There aren’t directions or any explanation for how it works. 

Asked by: Lbucklin10
You are referring to the mid-level strainer. This part allows more circulation of the water when it is in the open position. Unless you have small fry or tend to feed heavily and don't want the food removed, leave it in the open position. BREX
Answered by: BREX
Date published: 2018-01-23

What is the red hanger that hold the bio wheel in the filter called? And can you get a new one?

Asked by: neenee
If you have the Penguin 75, that is the bracket. It is item ML90713. If your local fish store does not have it, give us a call at 1-800-322-1266. BREX
Answered by: BREX
Date published: 2018-01-19

on the tube going into the water, what position should the grey cap be on over the holes? There are no instructions.

Asked by: plemme
That depends on your particular tank and situation. Open increases your flow rate, closed slows it somewhat, and prevents food from being pulled in. BREX
Answered by: BREX
Date published: 2018-01-31

15 gallon cube nano tank, 2 seahorses, 9 snails. All of my water levels are off the chart. Bio-Wheel Penguin 100 Filter. Is that filter to small? How often can I change the cartridges to get my water back to normal. I do weekly water changes.

Asked by: Seahorses
Instead of just using cartridges, try adding some bio media, such as bio balls, bio beads, ceramic rings, etc. The cartridges should be changed weekly when used in a salt water tank. Also, most nano tanks use a lot of live rock, which you didn't mention. BREX
Answered by: BREX
Date published: 2018-01-20

I have 55 gallon what size filter should I get

Asked by: Blainer11
We would recommend the Penguin 350 for that size tank as it is rated for up to 75 gallons. BREX
Answered by: BREX
Date published: 2018-01-09

I have a Penquin Biowheel Mini hang on filter and I lost the biowheel assembly. Is this part available? This filter is like the EverReady Bunny. Just restarted a 5 gallon hex and would like this filter to be complete if possible.

Asked by: RKTraut
If you have the mini or the hex 5, this would be the bio wheel: http://www.marineland.com/Products/aquarium-parts/Filtration-Products-and-Skimmers/Penguin-Parts/BIO-Wheel-Parts-for-Penguins/BIO-Wheel-Assembly-for-Penguin-PF99B-Eclipse-Systems-2-3-Hex-5-Corner-5.aspx BREX
Answered by: BREX
Date published: 2018-01-08

I just bought a 200 b filter and there is a lot of noise. Sounds like the impeller. What can I do to fix this 

Asked by: Andy246
New filters can be noisy if air is trapped around the impeller. This usually lasts a day or so, max. To help reduce the noise, and ensure the impeller is not only okay, but seated properly, pull out the intake tube, impeller housing, and impeller, inspect them, and then re-seat them in the filter. For more help, call 1-800-322-1266. BREX
Answered by: BREX
Date published: 2018-01-08

My Bio wheel is not moving on it's own but I can spin it freely. It worked perfectly one day and not at all the next. The water is flowing, the motor working fine but it just won't go. The wheel itself is is perfect shape. Any ideas on this are appreciate

Asked by: janeo
Make sure the water level in the tank is to the top of the tank. If it is low, this will keep the bio wheel from turning. If you have had it for a few weeks or months, the motor can be fine, but the impeller could be dirty and need cleaning. A dirty impeller slows the flow rate down drastically. You would need to pull the intake tube, impeller housing and impeller out. Clean each part and down in the filter box as well. Call 1-800-322-1266 is you need more help. BREX
Answered by: BREX
Date published: 2018-01-08

It’s not sucking up water and making a grinding noise.

Asked by: Teacher25
Make sure you fill it up with water and that the tank is filled up to the top as well. If both are full, then remove the intake tube, impeller housing, and impeller. Clean the impeller, and clean out the bottom of the filter box, then re-install everything, put it on the tank, and fill it again. Call 1-800-322-1266 if you need more help. BREX
Answered by: BREX
Date published: 2018-01-08

I have a BIO wheel 200 and it works but it very noisy. When it pumps. I have taken the impeller out and ck every thing nothing in the housing. I have to pry out the housing a little to quite it down but now that doesn't work. And less then a year old

Asked by: Driving me crazy
If the noise is a buzzing, make sure you plug it into a power strip with surge protection. Right now, heat sources are running like crazy because of the bitter cold, and this is putting a drain on voltage which can cause buzzing. If it is grinding, and you have sand, the sand has probably damaged it and you need a new impeller. If it is rattling, the impeller may be loose in the impeller housing. Did you also clean out the area at the bottom of the filter box where the impeller sits? Use a swab or twist a paper towel so you can pack it in there tightly and twist it to clean it out. Also, soak the impeller in distilled white vinegar in case you have hard water deposits. Please call 1-800-322-1266 so we can help troubleshoot it and see what you need. BREX
Answered by: BREX
Date published: 2018-01-05

Penguin 350 making grinding noise. Cleaned impeller and tried vasonline still making noise. Going to buy new impeller. How do I keep bacteria on bio wheels alive since I am not running filter because of noise

Asked by: Dfeldbauer0427
The bio wheels have to stay wet, so float them in the tank. Do you have sand? If so, that's why the filter is noisy. Sand grains get caught in the bottom of the motor or up under the magnet, and wear grooves in the shaft or in the sides of the motor. You have to place filter floss in the bottom strainer or buy a sponge accessory to cover it. BREX
Answered by: BREX
Date published: 2018-01-27

I have a H.O.T. Magnum Canister Filter and I'm going to add the Bio-Wheel to it. (Did not come together, although the instructions say WITH Bio-Pro System ) Anyway, I read something about not needing other bubble stones and the under gravel filter system

Asked by: betty246
Under gravel filters went out of popularity around 2000. Air stones are necessary in heavily stocked tanks or tall tanks. BREX
Answered by: BREX
Date published: 2017-12-22

I have two penguin 300's from 1994. Yes, Yes, not 350's, the old school 300's with the media baskets behind the cartridge slot. My question after some googling is when did you stop making the 300's with those media baskets and replace them with 350's

Asked by: atmu5fear
Early 2000's. BREX
Answered by: BREX
Date published: 2017-12-20

How much is it?

Asked by: Ace455
That depends on the size you need as well as the market in which you shop, but this line runs from $15-$50 typically. BREX
Answered by: BREX
Date published: 2017-12-18

My bio wheels on my filter are starting to move but stop then move again and I got the filter about 1 week ago is this normal

Asked by: Dustin757
A little soon for this to happen, but yes. Make sure the tank is filled to the top and check for any debris clogging the intake tube, filter box or impeller. BREX
Answered by: BREX
Date published: 2017-12-18

My filter no longer is pumping any water nor is it making any sounds when plugged in. I have taken the intake tube out, the filter out, made sure there's no obstruction in the impeller, cleaned everything, and filled the filter box with water.

Asked by: TheScienceTeacher
Make sure you have the impeller in the filter box, by itself, no water, when you plug it in. If it still makes no sound, the motor is dead. If it does make sound, try soaking the impeller in vinegar and cleaning out the well of the motor with vinegar as well. If you are unable to resolve this, call 1-800-322-1266 as we would be happy to help. BREX
Answered by: BREX
Date published: 2017-12-13

My power went out now my 350 will not propel water over the edge it makes a rattling noise. It does that when its about to go over normally but now it stops pushing the water thru

Asked by: Billium
This is a sign it needs to be taken apart and cleaned. Pay close attention to the impeller and the bottom of the motor, where the impeller resides. If you are unable to get it operating, call 1-800-322-1266. BREX
Answered by: BREX
Date published: 2017-12-11

my biowheel 200(13 weeks) on my saltwater tank (37 gallons), has stopped completely and wont work , theres no water damage ive done only filter change and tube cleaning ,, I need this filter to work , I set up temp diy one with your maxijet 900 and a 2l

Asked by: joshbridges
As it is a marine tank, you need to remove your impeller and impeller housing every month and soak the impeller in distilled white vinegar to keep it free of salt crud. Also, clean out the well of the motor by soaking a paper towel and packing it into the motor for a few moments, then twisting it around, and pulling it out. Rinse everything very well with hot water. BREX
Answered by: BREX
Date published: 2017-12-08

How wide is a 200 filter

Asked by: KevinM
The dimensions are 9.5 X 6 X 7.5 BREX
Answered by: BREX
Date published: 2017-12-09

I took my 350 filter apart and cleaned. Since I have reinstalled one of the bio wheels is flying fast and the other is normal. Water speed is much faster on this side. I have adjusted intake. Please advise.

Asked by: twelcker
That's not an issue, but apparently you either have something partially blogging the filter on the slower side or the bio wheel is damaged or clogged. To clean a bio wheel, take it out, and use a plain q tip with out any chemicals or detergents, and swab between the folds. BREX
Answered by: BREX
Date published: 2017-12-04
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