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These mini pre filter sponges are great for small hang on back filters or very small power heads. This is a custom design we had made with a more coarse foam so it doesn't clog up instantly on filters. 

Intake hole: 0.5 an inch. 

Diameter: 1.25 inch

Length: 2.75 inch

Mini Pre Filter Sponge Coarse

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These mini pre filter sponges are great for small hang on back filters or very small power heads. This is a custom design we had made with a more coarse foam so it doesn't clog up instantly on filters. 

Intake hole: 0.5 an inch. 

Diameter: 1.25 inch

Length: 2.75 inch

Customer Reviews

Based on 58 reviews
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J
J.
Great product

This fit perfectly on my Aquaclear 20s and Whisper Power 10. It has significantly reduced the gunk build up in my filters, and allows fish to easily pick at some of the leftover food, reducing waste. Highly recommended.

J
J.Q.
Nice Sponge to Cover Filter Intake

This does exactly what it’s supposed to. It fits perfectly on the intake for my 5.5 gallon kit filter. My shrimp love to graze on it, and my dumbo betta’s large fins don’t get sucked to it at all when he swims by.

W
W.F.
Great Product

Amazing pre filter sponge that will last a long time and won't clog quickly.

W
W.H.
Works great and keeps fry and shrimp safe

I absolutely love this prefilter sponge! It fits my Cascade 150 perfectly and keeps all of my shrimplets from getting sucked up into the intake. It’s never clogged on me, and also makes a great surface for the adult shrimp to graze on.

I’ll definitely be buying more! It’s a great product, just make sure you take it out of your waste water bucket before you dump it, otherwise you’ll end up losing it down the toilet like I did, oops. I love how small it is so it doesn’t take up space in the tank, but it also makes it the perfect size to get flushed if you mess up like I did lol

J
J.M.
Great filter

Yes. I think this is the best sponge that I have ever had. I have one mini and middle sized per filter sponges. they are work great never clogging only cleaned once in two weeks. normal filters i had to clean every two or three day because they would stop up. So theses work for every reason you would want a prefilter sponge.