Marineland Penguin Pro Aquarium Filter, 375

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$64.87 (-10%) Chewy Price
$71.79 List Price
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About This Item

Details

  • Comes with BIO-Wheel technology, providing wet/dry biological filtration.
  • Three-stage mechanical, chemical and biological filtration cycle.
  • Compatible with Marineland Rite-Size B Filter Cartridges.
  • Available in six different sizes to fit most aquariums.
  • Capable of controlling flow up to 125 gallons per hour.

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Reviews
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4.4
Rated 4.4 out of 5 stars
25 Ratings
Terms & Conditions

10 Customer Reviews

Rated 5 out of 5 stars
By Ashleigh on Dec 1, 2025

I don’t have to fill with water before plugging in!

This filter works great an it’s a lot quieter then others it’s size! There’s a great little knob right under the lid that I can adjust the water flow as well!! It’s

This filter works great an it’s a lot quieter then others it’s size! There’s a great little knob right under the lid that I can adjust the water flow as well!! It’s perfect

Rated 4 out of 5 stars
By Robert on Aug 26, 2025

powerful, feature-rich filter, for the right tank

This filter assembly is quite large, wider than the equivalent non-pro penguin model. Check your dimensions before buying. The adjustable valve is useful if your

This filter assembly is quite large, wider than the equivalent non-pro penguin model. Check your dimensions before buying. The adjustable valve is useful if your fish are sensitive to water flow, although it is a little fiddly to manage initially. There are a lot of options for intake, but it feels like this is best suited for larger tanks. The base of the inlet is huge, but again, I feel like these pieces are meant to be catered to the aquarium. Every adjustment is built-in, so no need to retrofit or drill holes in the inlet. Also not having to endlessly prime this thing is great. One more thing I'll mention: initially the filter and bio-wheel in particular was extremely loud, making a resonating slapping noise. Slightly settling the angle against the glass fixed this permanently.

Rated 4 out of 5 stars
By Dana on Jul 14, 2025

It's trying to keep up with the turtles

I bought this for my yellow slider turtles' tank (two full grown turtles). The turtles haven't destroyed it yet (thank goodness). I finally decided to swap to a

I bought this for my yellow slider turtles' tank (two full grown turtles). The turtles haven't destroyed it yet (thank goodness). I finally decided to swap to a filter that hangs on the tank (best choice so the turtles can't disassemble it). After a week, there's not a lot of waterflow even after changing the filter cartridges but it's still keeping the water clean so I see that as a win. This filter would work amazingly in a regular fish tank as I have a smaller one in my regular fish tank. Turtles are just hard on filters.

Rated 5 out of 5 stars
By Christine on Nov 29, 2025

Keeps tank super filtered

Crystal clear and super water movement.

Crystal clear and super water movement.

Rated 5 out of 5 stars
By apeflames on Dec 13, 2024

Penguin Pro 375

I've owned Marineland filters for over 40 years. They are the best ones made. I have 2 old Emperor 400's that are over 20 years old. This is my first of the newer

I've owned Marineland filters for over 40 years. They are the best ones made. I have 2 old Emperor 400's that are over 20 years old. This is my first of the newer pro series. I am impressed. It does an excellent job filtering my water and I have to look in the tank to tell it's running. It's absolutely silent. Think I'll update some of my old filters to these new pro series filters.

Rated 5 out of 5 stars
By Bill on Jul 25, 2025

High quality works great.

Very very reliable.

Very very reliable.

Rated 5 out of 5 stars
By alex on Jan 12, 2025

Amazing product

Excellent filtration. Crystal clear water. Very quiet

Excellent filtration. Crystal clear water. Very quiet

Rated 5 out of 5 stars
By Terry on Jan 23, 2024

My new filter

Just bought another filter for my fish tank as I think the last one was defective. I wish I had paid more attention to it as I was losing my fish but didn’t know

Just bought another filter for my fish tank as I think the last one was defective. I wish I had paid more attention to it as I was losing my fish but didn’t know to look for it until it was too late

Rated 2 out of 5 stars
By Kyle on Nov 14, 2023

VERY LOUD

Really really loud. Have to fill your tank up to the top for it to quiet down. Will not buy again.

Really really loud. Have to fill your tank up to the top for it to quiet down. Will not buy again.

Rated 4 out of 5 stars
By Tatersalad on Mar 16, 2023

Nice pump!!

Nice pump very strong. Replaced a smaller one, very satisfied.

Nice pump very strong. Replaced a smaller one, very satisfied.