NICREW Fish Tank Filter, Internal Aquarium Filter for Small Tank, Coldwater or Tropical Aquariums, Up to 20L Black

Had it for a few months now and she’s still going strong. Many other cheaper filters I’ve tried are generally rubbish but this one was a good find so I’ll give myself a pat on the back for that. I’m lazy so don’t clean it as often as I should but even so it doesn’t stutter on keeping the tank nice and clear and runs 100%. I did find the nozzle with the holes that give the waterfall effect is easily clogged with food debris and can be difficult to clean. I’ve had no issue with the straight nozzle however. Cable is a good length and the power in the water flow is great. It’s easy to put together and generally easy to clean as well as great value for money. Highly recommend.

Fantastic filter, I needed a new one as the one that came with the tank I bought the filter was extremely noisy so I ordered this one. It's fantastic, quiet, easy to install and offers good filtration.

Filter works well in itself, a little bit louder than I would have liked when it’s not in the water. Clarity of water is ‘ok’. Size is good, did have to give it a clean sooner than I would have liked.

Excellent mini filter ideal for beta tanks cleans the water excellently but you have great control of the water flow to speed it up or dial it back.

Works really well

This is my second purchase of one if these. I have had one running continuously for three years without any problems. They give a good flow of water through the filter sponge and are easily cleaned and replaced by simply removing the filter top and base then washing and returning the sponges. They come with a spare impeller and a air tube if you need to add air to the filter outlet. I removed the pointless little bag od carbon and replaced ot with sponge in order to get better waste removal from the water. I can definitely recommend these filters because they aree very well made and come in various sizes to suit most tank setups.

Even the mini was far too fast flow for my Betta in a 20L tank, they’ll get thrown about and I wouldn’t recommend. The water comes out powerful from the spray pipe too and it’s not relaxing at all. Was looking forward to this

I am sure it is a good filter but I bought it after researching one for my Betta fish and its fins kept getting trapped in this one so I had to remove it. Luckily it has survived.