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Manufacturer's write up



Penguin® Filters All Penguin® BIO-Wheel® Power Filters deliver easy, three-stage mechanical, chemical and biological aquarium filtration. Convenient Penguin Rite-Size Filter Cartridges come ready to use with each filter...ready to mechanically and chemically remove waste, discoloration and odors. Each contains new faster-acting Black Diamond Premium Activated Carbon for maximum efficiency. Biological filtration is provided by the revolutionary and patented BIO-Wheel - proven best at removing toxic ammonia and nitrite. All BIO-Wheel filters feature Noise-Reducing Two-Piece Vented Covers, and Adjustable Mid-Level Intake Strainers.




  • Leak Proof, Easy-Care Design and one-piece tank and motor assembly means no O-rings to fail. Single moving part removes easily for cleaning. No oiling or motor maintenance required.

  • Automatic Self-Starting Feature - starts and restarts automatically. No messy siphons or valves.

  • Worry-Free, Safety Engineering - U/L listed, CSA available. Epoxy-sealed, moisture-proof motor ensures safe operation.

PF 0099 Penguin Mini (100 GPH)
Penguin Power Filter 100B Certified flow rate of 100GPH, for aquariums up to 20 gallons.
Uses the Rite-Size “A” filter cartridge.
Penguin Power Filter 150B Certified flow rate of 150GPH, for aquariums up to 30 gallons.
Uses the Rite-Size “B” filter cartridge
Penguin Power Filter 200B Certified flow rate of 200GPH, for aquariums up to 50 gallons.
Uses the Rite-Size “C” filter cartridge
Penguin Power Filter 350B Certified flow rate of 350GPH, for aquariums up to 75 gallons.
Uses two Rite-Size “C” filter cartridges.

Your comments:

From: Cheryl
Date: 01/21/2010
Product: Penguin biowheel filter for 29 gallons
This filter is awful ... the water gurgling is loud ... the biowheel stopped spinning after only five months ... occasionally makes mechanical sound that is extremely annoying ... and every once in a while I have to get up and push the covers down as they have started to vibrate and make noise ... I bought this filter because of the biowheel as I had an eclipse tank before in which the biowheel spun for five years ... I have a five gallon eclipse tank as well and the biowheel works better than this filter ... if you have the money, get a better one ...
From: Michael Daniels
Date: 07/07/2008
Product: Penquin 100B and 200B
I have both of these filters and love them both. A good buy in my opinion.
From: Michael
Date: 05/30/2007
Product: Penguin biowheel 300
Great Filter-I use it along with another filter on a 55 gallon. As with my other experiences with Marineland -I love it. Great bang for the buck as is their way it seems-in my humble opinion.
Product: biowheel 100 power filter
I use this filter on a 20 gallon fresh water tank and I have never seen such clear water for as long a period of time. This is in my opinion a great product.
From: Bryan
Date: 04/30/2003
I use 330's almost exclusively on all of my tanks (10 gallon-125gallon) even the tanks with fry...I wrap some Java moss around the intake and the lil ones stay in the tank...the flow rate is reduced but its worth it. The reasons I use them are they are quite, cheap ( 25$ online) and the bio wheel makes cycling a new tank VERY quick...I just swap a bio-wheel from an established tank and im ready to overstock :)
From: Anonymous
Date: NA
Let me start off with the 330. This filter is great for easy and quite filtration. It is not as efficient as the Emperor but it still out does whisper, aqua clear, and many other powerfilters. The smaller models are great to use on smaller tanks. I have a 170 and 125 on my 43 hex, 2x125 on my 30 gallon, 2x100, one on my ten gallon sick tank and the other on my ten gallon in my room. The biowheels work great. I recommend these filters to all who like to have clean and clear tanks
From: Rhys
Date: 6/18/2001
I've had the 110 running for about 8 months and it has always kept my tank perfectly clear, and all levels tested fine. One day it did block and dumped 10 gallons all over my lounge floor, not the best thing to wake up to. But cleaned it out and it works fine, been toying with the idea of buying the 160 for my 40 gal. tank, but because it is a long tank, I don't believe it creates enough of a current, the only downside to this great filter.
From: Joey
Date: 09/10/2001
My Penguin 300 is a mule. It is 11 years old and still works as it did back in the day. I cannot say how many times I arrived home after an apparent power outage and heard the thing gurgling, just trying to get the prime back. With a scoop of water poured into the unit the gurgle slowly fades into the quiet(and relaxing) sound of trickling water. The thing still has It's original impeller. If it were not for changing the dual rite-size filters, (and the occasional prime up) I would not have to go near it. As much as I would like to try one of the newer Penguin filters, I just don't have a reason to. But when the day comes and this one goes to the ol' filter graveyard, you can bet your ugliest Pleco it will be replaced with another Penguin. Great product Marineland.
From: Karla S
Date: 12/28/2001
I have been using a Penguin 125 for the past six months, and it seems to do a great job of keeping the aquarium clean. It's easy to use and low maintenance. However, it has also killed five of my fish! If they get too close to the intake basket, it sucks them in and they cannot escape its suction power. They struggle for hours, until I happen to notice and free them, but its usually too late and the damage to their scales or fins has been done. This is very frustrating, not to mention, expensive. If anyone has a solution, please email me.
From: Ron
Date: 1/20/2002
filter:Penguin 330B Dual Bio-Wheel Filter
I only wish this kind of technology had been available (and AFFORDABLE) some 25 years ago when I was raising and breeding cichilids! I've retuned to fishkeeping with a community tank five years ago using a Penguin 330B (used to be 300B) on a 30 gallon rig (along with a Penguin powerhead 1140 on a UGF)...and I've never had any problems whatsoever...The water is ALWAYS crystal clear, and I like the advantage of using extra media of choice with the media baskets provided. The only drawback is the splashing noise you'll hear as the water level diminishes due to evaporation, so keep that water level maintained! Also the Bio Wheels work only when spinning, so it is important to keep the axles and plastic bearings free of grit or water substance deposits...Otherwise..GREAT PRODUCT!
From: Matt
Date: 03/23/2003
Great filter. I have this one running in my 37 gallon for about 4 months now, and aside from the cartridge changes, I haven't had to even touch the thing. It keeps my water crystal clear and the bio-wheel keeps the ammonia and nitrates down. I also have a Penguin Mini in my 10 gallon, and it is just as good as it's bigger brother. Great filter for a beginner, because it's relatively inexpensive, very easy to use and maintain, and above all very effective.
From: Slagmi
Date: 08/28/2003
This filter is _silent_! If the water levels too low there will be a waterfall sound, if it's only a bit low there will be a water trickle sound that is quite relaxing. Maintenance is about as simple as it could possibly be.





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