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Marineland Rite-Size Cartridge A, 6-Pack


List Price: CDN$ 27.19
Price: CDN$ 12.13
You Save: CDN$ 15.06 (55%)
Usually ships within 3 to 4 days.
Ships from and sold by HorseLoverZ & EasyPet Canada.
6 new from CDN$ 12.13
  • A perfect fit for every filter
  • Meets the highest standards of water purification and operational ease
  • Each cartridge is pre-assembled


Product Details


Product Description

Rite-Size A fits Penguin 100B, Mini, and 99B.Rite-Size B fits Penguin 150B, 110B, and 125B.Rite Size C fits Penguin 200B, 350B, 170B, and 330B.

Customer Reviews

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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 810 reviews
107 of 111 people found the following review helpful
Great - but a warning Feb. 28 2010
By Arnold Berger - Published on Amazon.com
The Penguin Bio-wheel pumps are great: quiet, effective and long-lasting. (I have a 170 filter in a 39 gallon tank.) These size C filters are widely available, but the Amazon price is much lower than at my not-so-nearby pet store.

A word of warning. The day after changing my filter three months ago fish started dying. Next morning my 6" long Plecostomus was dead. Then three Clown Loaches, each about 5 " long. Within a week I had lost 18 of my 20 fish. Yet there was no sign of disease.

A water test and much internet searching finally pointed out what I had done wrong. I had neglected my tank for a few weeks. In a rush to catch up, I siphoned out about 30 percent of the water (more than usual), did a "better" than usual job of siphoning up detritus from the gravel. Then - my biggest mistake - I replaced the Penguin filter too! The result is the water chemistry changed too quickly. The Nitrates spiked to a deadly level. My tank, healthy for more than two years, needed to be started over. Took two months and many water changes before I could safely add new fish.

I visited perhaps a dozen "fish forums" and only one had a comment saying "don't change filters when you do a water change.' The Penguin filters and the box they come in carry no warnings. What I (and you) should do is simple: space your water changes and filter changes a week or two apart.

Now knowing how important the "aged" filter is (especially in a tank like mine with no under-gravel filter) I've started this habit: there's just enough space to get a second filter flat against the old filter, their blue faces touching. After a few days I remove the older filter and put the newer one - by now doing some biological filtering - in its place. That way the tank is never depending on only a new filter. For larger tanks (say 55 gal and up), the 330 or 350 Penguin pump holds two filters side by side, so never change both filters the same week.

Hope this helps you avoid the disaster that hit my tank.

Others who I am sure know more about water chemistry have made comments that suggest that what I did is OK to do. I repeat: I changed about 25 percent of the water, vacuumed the gravel extensively and changed my filter. AND MY FISH DIED SOON AFTER. Again, I suggest you be safe and not sorry.
24 of 27 people found the following review helpful
Great price - but a warning Feb. 14 2010
By Arnold Berger - Published on Amazon.com
Verified Purchase
The Penguin Bio-wheel pumps are great: quiet, effective and long-lasting. (I have a 170 filter in a 39 gallon tank.) These size C filters are widely available, but the Amazon price is much lower than at my not-so-nearby pet store.

But a word of warning. The day after changing my filter three months ago I began losing fish. Next morning my 6" long Plecostomus was dead. Then three Clown Loaches, each about 5 " long. Within a week I had lost 18 of my 20 fish. Yet there was no sign of disease.

A water test and much internet searching finally pointed out what I had done wrong. I had neglected my tank for a few weeks, so in a rush to catch up, I siphoned out about 30 percent of the water (more than usual), doing a "better" job of siphoning up detritus from the gravel than I usually do. Then - and this was the biggest mistake - I replaced the Penguin filter too! The result is the water chemistry changed too quickly. The Nitrates spiked to a deadly level. My tank, that had been healthy for more than two years, needed to be started over after many water changes and waiting more than two months to add new fish.

I visited perhaps a dozen "fish forums" and only one had a comment saying "don't change filters when you do a water change.' The Penguin filters and the box they come in carry no warnings. What I (and you) should do is simple: space your water changes and filter changes a week or two apart.

Now knowing how important the "aged" filter is (especially in a tank like mine with no under gravel filter) I've started this habit: there's just enough space to get a second filter flat against the old filter. After a couple of weeks, I remove the older filter and put the newer one - by now doing some biological filtering - in its place. That way there is never a time when the tank is depending on only a new filter. For larger tanks (say 55 gal and up), the 330 or 350 Penguin pump holds two filters side by side, so the advice here is to change only one filter at a time.

Hope this helps you avoid the disaster that hit my tank.

Marineland Penguin 350 BIO-Wheel Power FilterMarineland Penguin 200 BIO-Wheel Power FilterMarineland Penguin Rite-Size Ready-To-Use Filter CartridgesMarineland Penguin Cartridge B 125/150B 6 Pk
10 of 11 people found the following review helpful
Excellent value Feb. 24 2006
By D. Flewelling - Published on Amazon.com
Verified Purchase
Excellent value for product. Cheaper than buying in stores.

almost half price (even when factoring in shipping cost!!!)

EXACT SAME PRODUCT SOLD IN STORES
6 of 6 people found the following review helpful
Priced right Nov. 2 2011
By D. Ross - Published on Amazon.com
Verified Purchase
Same product you would find at any pet store, but at a discounted price. Picture shown is for a size B or C, but the actual product received is a size A with the notches on both sides at the top. Works great so I have no complaints on its function, especially since Marineland is a well known brand.
9 of 11 people found the following review helpful
Great deal Dec 15 2006
By Tyler Forge - Published on Amazon.com
Verified Purchase
I bought a load of these and saved a ton of money. Petsmart ships, so no amazon prime savings. Still, what a deal. My big tank takes 8 filters. I was avoiding changing them because of cost.

Funny, I changed all 8 at the same time and threw my tank out of whack. Too much algae and goo left the system with the old filters. I'll change 'em in stages from now on.

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