Rated 4 out of 5 by Dylan Gets the job done.
This filter pumps out water a lot, has decent filter cartridges, has the amazing biowheel, has a handy mid-level intake strainer, and can reach down far with the extension tube. Only reason I didn't give it 5 stars was because it is also a very noisy filter, so I don't recommend putting it in a tartan that is in your bedroom, but I do recommend it in general.
July 23, 2014
Rated 5 out of 5 by CichlidLover92 AMAZING filter for my 20 gallon!!
This filter works great for my 20 gallon. I have the Penguin 150 and my water is CONSTANTLY crystal clear! I've never had problems with it and it's been lasting me for almost 5 years now! Very good product! I would DEFINATELY recommend this to a friend!
July 15, 2014
Rated 1 out of 5 by felipevsu Extermely noisy
I just bought a penguin 100 and this filter just started to vibrate, I checked the impeller but the whole thing is in the right place and clean. I really waste my money in this fancy filter.
April 26, 2014
Rated 5 out of 5 by JARRETT AMAZING FILTERS
I own 2 of these...one for a 20 gallon tropical tank and a 10 gallon African Cichlid fry tank...keeps water crystal clear...added a pack of bio stones to the fry filter and only have to clean every 6 weeks...WOULD DEFINATELY RECOMMEND TO EVERYONE...CAN'T WAIT TO TRY THE PENGUIN 350 WHEN WE GET OUR NEW 60 GALLON FOR OUR CICHLIDS!!!!
March 30, 2014
Rated 5 out of 5 by Fishgirl703 Product does its job
I wrote a previous review for the filter media, but it probably belongs here lol Anyways, the filter is really good. I'm impressed with it and have tried other filters and was not satisfied. While it might be more expensive then other filters, it's def worth the money. It makes my 10 gal look super clean. And the bio wheel is really a big help b/c that means i won't have to add any beneficial bacterial supplement ever again. Will warn you though, bio wheel may stop spinning but thats fine because water still runs threw the bacterial supplement that is on the bio wheel. You can replace if you want but it would be a waste of money and there wouldn't be any supplement on the new bio wheel.
March 12, 2014
Rated 4 out of 5 by BTracker Ok, a bit noisy
Daughter bought a Marineland 20 gallon starter kit. Very nice kit for the money. But the impeller is a bit noisy. It was set up today we will wait a and see for a week if the noise goes away.
March 9, 2014
Rated 2 out of 5 by JayDragon Good filter, but SO LOUD
I don't know how the people in other reviews got lucky enough to not have noisy filters, but I nearly cried for the first 24 hours I had my 100. You could hear the thing across my house, on a different floor! I looked up the problem online and found many other people with a similar problem and found that some were able to solve the issue by lubricating the inpellar with Stress Coat and making sure to place it back into its place completely straight. I did this with no luck. Thank goodness my father is incredibly handy and was able to use a thin razor blade to shave off a teeny tiny bit around where the inpellar is inserted so that it could no longer hit the sides as it spins. This fixed the problem, but I don't think I should have to do minor surgery to make a filter run without excessive noise, voiding the warranty in the process. I'm happy with how the filter runs now, but my goodness, I don't think I'll ever purchase this filter again.
March 3, 2014
Rated 1 out of 5 by RDahn1 penguin 200
Not pleased at ALL. I purchased on for my 30 gallon tank and followed instructions to a T and when I went to plug it in , nothing happened and itssmelled burnt so I returned it for an exact product and the impeller on that one would run for 30-45 mins and then shut off , I'd have to adjust it and it would kick back on. Today I purchaseed a new tetra brand filter and would like my money back for this penguin filter.
February 9, 2014
Rated 4 out of 5 by BillC Impeller worn out
Two years ago I purchased a Penguin 350B HOB power filter. The filter has worked flawlessly until about two months ago. At that time the impeller began to make a rattling noise. After receiving a new impeller I carefully examined the new and old impeller. While holding each impeller by the two rubber bushings in one hand and spinning the impeller with the other hand I could definitely feel a slight wobble in the old impeller while the new one spun very smoothly. I carefully examined the metal shaft of the old impeller with a micrometer. There was no apparent wear in the shaft therefore obviously the plastic piece which contains the magnet and fins had worn to some extent and was causing the rattle. I replaced the old impeller with the new one and the pump was again very quiet. I am writing this review to caution owners of the Penguin and Emperor models HOB filters that as part of normal maintenance the impeller may begin rattling after 2 or 3 years and require replacement. As a side point after searching many sites on the internet I determined that the lowest cost for the Penguin 350B impeller was (believe it or not) the manufacture, Marineland at $11.97. Most mail order suppliers were between $15 and $20.
January 15, 2014
Rated 4 out of 5 by allnicknamesiwanttaken Functions as intended 95% of time
Purchased a Penguin 350 under the duress of another brand's failure. Function very well except at times, one or more of the biofilters stop spinning and must have either the shafts cleaned or the part where the shaft rides in the housing cleaned or both. Regardless of filter brands, it is never a perfect world. I wish they would provide/develop a pre-filter screen to trap larger "stuff" before filter. However, if I was in the filter business, I would want the consumer to buy new filters (ie: ink jet cartridges). Never the less, a system of washable pre filter screen(s) would be nice. May just buy new filters rather than wash dirty ones to manage cost.
January 12, 2014
Rated 5 out of 5 by Fishlover123 Beautiful filter
I have a 50 gallon aquarium and recently just purchased this filter. My old filter was a millenium 3000 and it was starting to die. This filter is quite and it is easy to maintain. Ever sense I purchased this it has made the water crystal clear and it is and is safe for my live plants. The mechanical filtration is eliminating all of the debris and dust from the water and the bio wheel is working because my tank has never looked this healthy and clean before. This has to be one of the best filters that marineland makes.
January 6, 2014
Rated 2 out of 5 by BriBri85 Penguin 200 - Too Noisy! Not the best fine particulate filtration
I have quickly learned that this filter is extremely LOUD! I have been running it for about a month now and at first it was just normally loud but last week the impeller started rattling. I took it apart and lubed it up with some petroleum jelly and that fixed it until my canister filter comes in the mail. But even with normal operation this filters motor and impeller make too much noise in my bedroom for my wife to sleep. Maybe fine if in your living room. It also disperses tiny bubbles constantly and slightly clouds the water. I have tried to adjust water height but that doesn't seem to work. I am still cycling my 29g tank and some cloudiness is expected but it doesn't seem to do a very good job with filtering the smaller particles which also are contributing to a cloudy tank and extreme Nitrite levels. I am now doing 50% water changes every day to keep my 5 Guppies alive and probably starving them slightly to keep from overfeeding. I am using conditioner and stability additives as well and I never wash anything under tap water. Anyways I think if your serious about your fish you should shell out the extra dough and get a quality, silent, canister filter.
December 15, 2013
Rated 1 out of 5 by asilva93 product worked for about 2 months then stopped working.
product worked for about 2 months then stopped working. bought another one I figured it was just a bad one and about a month and a half later it stops working this time killing a few of some very exotic and experience fish. Not Happy!
November 26, 2013
Rated 4 out of 5 by IDK127 Found the fix for noise filter
While the filter is running, try to lift up the intake tube from the top. Just a little bit. Or when putting the intake tube in, don't push the tube all the way down.
November 22, 2013
Rated 4 out of 5 by romcypher verygood filter on my fresh water tank
A+++++ would recoment marineland items any time. own several items my self.
November 7, 2013
Rated 1 out of 5 by vg3621 never again
I bought the 350 just under 2 weeks ago and it just stopped working. I can hear the motor running and can feel the sucking power from the intake tube but it is doing nothing. I returned it to the place of purchase and switched it out for another one of the same. I got home and installed it and again the same problem. I'm just gonna give up on this brand and return this last one and switch it out for another brand.
October 30, 2013
Rated 5 out of 5 by Spike89 Great filtration
I bought the Marineland 20Gal LED tank kit and the peguin 20gal filter. The ilter works very well even a year and a half later. I run two filter cartridges in it without any flow issues. The Biowheel is a good bonus to the system. Highly recommnd this brand for any tank.
October 29, 2013
Rated 1 out of 5 by s2h1987 Poorly made
I purchased a Penguin Power filter 150 and I have had nothing but problems! The impeller is garbage! As soon as you take the filter apart to clean it, it is never the same.. It starts making a loud grinding noise that comes and goes and eventually just stays that way. I have cleaned this product with vinegar but it doesnt seem to help.
October 16, 2013
Rated 5 out of 5 by PFrogBean Smmmmaaarrt Design!
Mine has only been running 2 weeks, so long term reliability aside; the stacked cartridges, double adjustable inlet, & biowheel are awesome features. It's easy, quiet, & my fish favor the current on that side of the tank over the power head at the other (i'm gonna move it closer to the middle now). My 20gal salt cycled with 2 clowns, 8lbs of live rock, 10lbs live sand, & a bacteria dose in only 2 weeks!
October 9, 2013
Rated 5 out of 5 by rayraycanuck Excellent product
Purchased 2 Penguin 330's in April 2013 for a 70gl and I am very happy with this product. Very quiet and no problems except for a slow bio wheel which is totally fine. These replaced 2 penguin 300's that were still running fine after 12 years straight service on the tank. and are now in the boxes as back ups. Crystal clean water as always and didn't even look at any other filter product line on the market before my purchase.
September 20, 2013
Rated 1 out of 5 by Boogety48 Had this filter less than four months and it quit working
I bought this filter back in May. I woke up two nights ago and it had died sometime in the middle of the night. I have cheap filters that came in starter kits that still work after 2 years. I will never buy or recommend another Marineland filter after this.
September 15, 2013
Rated 5 out of 5 by 1HappyCustomer Wicked Good Aquarium Filter and the product price is beyond fair!
My last filter bit it when I came home to find at some point during the day my neighborhood had lost power. I have a very busy and somewhat hectic schedule and was only able to search for a replacement filter on line for short periods of time.
Due to the fact the fish our my Son's goldfish, (dirty lil' buggers) I had to get a replacement ASAP as I do not have time to clean the tank a couple of times every 7-10 days.
Within a few days I had narrowed down my choices to 3 different filters from 3 different competitors. Price, function and in store availability were my determining factors.
With this information in hand, I headed out to the local pet supply store in search of a replacement filter.
Once I had all 3 contenders in front of me for inspection, my choice was made easy by mainly the price of the filter, then the availability of replacement cartridges and lastly the fact that the particular filter I chose was the last one they had telling me I wasn't alone in thinking this filter is a good choice.
So, I purchased the filter, brought it home, put it together, primed it and plugged it in.
I had second thoughts as to my decision to not clean the tank prior to plugging in the new filter, but as I stated earlier my schedule is crazy busy and well, the tank was just a bit cloudy, not really dirty at all so I just left it be.
When I woke up the next morning I was stunned at how amazing the tank appeared. It looks as though it had, had a thorough cleaning!!! The water is crystal clear and odorless and the fish, albeit are just your run of the mill goldfish are happy and thriving well. I am genuinely pleased with my choice of filter as are my Son's Goldfish!
Given the price, availability and function, from here on out, I WILL only purchase Marineland products. THANK YOU for offering this filter and all the other products I've found in my search. Your products ROCK!!! :O)
September 5, 2013
Rated 4 out of 5 by chas will repair and still use, if possible.
the 330 filter has served me well, a good product, that is why I would like a replacement part.
August 26, 2013
Rated 2 out of 5 by bigandeezle bio-wheel does not spin.
I have a bio-wheel 400 and it works perfect. both wheels spin. I have been through 2 bio-wheel 200's in the past 4 months and both work good for a couple weeks and then no wheel spin. how am I expected to cycle my 29 gallon tank if I can't get the main component to worh.
August 22, 2013
Rated 1 out of 5 by Krissy39 Always breaking
We are on our 6th one. Plus how ever many filters we have bought thinking that was the problem. I wish someone could come out with a better product. So frustrating.
August 3, 2013
Rated 4 out of 5 by Evanbregenzer These filters are great filters.
These filters are great filters and they keep my aquarium clean and clear.
July 22, 2013
Rated 1 out of 5 by mochismom Poor filtration
This just nit put out enough power to keep the water clean, I had to replace the first one that did not last a year
June 30, 2013
Rated 1 out of 5 by nope didnt even work
spent so much time trying to set it up, and it never even turned on. bio wheel doesnt spin, tube is way too long for my tank. now i have 3 fish stuck in measuring cups because the filter doesnt work
April 19, 2013
Rated 4 out of 5 by NewAquariumEnthusiast Average Filter
I purchased a 200 Penguin Bio-wheel filter 4 weeks ago.
1. Good overall buy for the price.
1. You can't have a dual filter cartridge as the packing says you can. If you add a second filter cartridge then the water struggles to get through both filters, backs up, and just pours out through the water overflow chamber. This completely bypasses the bio-wheel which defeats the purpose of having one. It started working property when I removed the second filter cartridge. But now after a few days it started backing up again. So I rinsed the cartridge and it started working again. Then a few days later it started backing up again and the cartridge wasn't even dirty. But again it started working after I pulled the cartridge out of the slot a little bit. I'm not sure what the problem is with the filters. Perhaps too full of carbon or perhaps the water overflow chamber needs to be bigger. Not sure.
January 12, 2013
Rated 1 out of 5 by amsoilman This product is not reliable
I purchased the Penguin 200 Bio-Filter only two Months ago, and now it has started t fail. The problem seams to be that the flow of the water has been reduced to the point the Bio-Wheel will not turn. I have taken it apart to clean it, and it looks very clean, so something else is the problem. I certainly don't want to purchase another one, but will need a pump in the very near future. I don;t think I will get this brand again!
January 2, 2013