NICREW Slim Aquarium Filter, Quiet Fish Tank HOB Filters for up to 5 Gallon Aquariums, Adjustable Flow, 42 GPH, 3W

It’s a great filter with a top and tubes that comes off very easily for cleaning. It has a great value for being rated for up to 8 gallons for just 12 dollars. The plastic material is very high quality and as I put it in my bedroom extremely quiet once you get it running. It is a very stable filter and it definitely doesn’t need rubber or other dampening materials to stop vibrations like other filters. The plastic and the pump is visibly high quality and it quickly cleans everything well.

quiet and perfect for my 6 gallon tank. I like the option to easily adjust the flow

This is a strong, well-built little filter. For most tanks, I think it would be well worth the money. I have a very shallow watercress tank with a sand substrate and soil underneath, and this filter worked well at first. In fact, I bought the first one on March 10, 2026, and liked it so much that I bought a second one for my other watercress tank on March 19, 2026. Unfortunately, they both eventually started clogging daily because of the sand. I put a bit of slate over the sand to act as a baffle, under the intake and outflow, which helped them keep chugging along for another week. I think that these would be great if I had pebbles on top of the sand, or even gravel, but then that would impede my watercresses' ability to spread and turn into a delicious mat of salady goodness. RIP NICREW, you were great while you lasted.

Hands down best filter for a 5 gallon Very quiet Very easy to put together and take apart for cleanings Great prices

Nice and compact for a small aquarium. The pump is pretty quiet.

I really love how quiet this filter is. And it gives just the right amount waterflow for my two and a half gallon nano tank. The first one I purchased lasted for a year. When it died, I repurchased a new one that only lasted four months. It died just after the amazon return window. I thought maybe I got a dud, so I went ahead and ordered a replacement. The replacement died after four days. I'm not sure how to feel about this filter anymore.

Super quiet, super effective, super cute.

Not the easiest/quickest to prime. I'd recommend replacing pre-filter. I modified the cartridge filter to use as a hold back for a custom bag filter. Very easy to clean!! Small size and limited water flow. Works well in my 4 gallon tank though.

satisfait de ce petit filtre, semble tres bien fonctionné, parfait pour ma petite aquarium de 3 gallons, tres silencieux et sa puissance est surprenante, fait un bon débit d'eau dans l'aquarium. donc, tres bon rapport qualité-prix, Ecellent!

Extremely quiet and discreet design, very conveniently sized. Run it on my shrimp-only 20l tank and bought it mostly for surface agitation but surprised at how good the filtration actually is for such a compact device. Well priced too! Will definitely use again.

Stopped working within 24hrs. Noticed my thermostat temperature creeping up, was set at 27 and ended up at 30 which means this pump over heated and affected the tank water temperature also! And I bought 2 for 2 tanks both exactly same and stopped working.

This product is one of the worst products I have bought. If you need my evaluation, I will give it a bad evaluation because it broke down in the first week and when I started using the product, it was very hot. I do not advise people to buy it and I advise them to buy any other product.

Great little water pump—easy to install, very quiet, and keeps the water flowing nicely. My fish seems more active and comfortable, so it’s definitely doing its job! I just wish it was usb connection.