The filter that came with my 5.5 gallon was blowing my betta around the tank, no matter what I did in the way of baffling. This is perfect, the flow isn't too strong, and a sponge fits perfectly inside it for hot rodding.
I love this litter filter. It was easy to put together and is working great.
Purchased this along with an AquaClear 30 sponge and mini intake filter for a ‘hot-rodded’ setup. It was easy to install and has been running quietly since it arrived (which was super fast from ordering). I like the adjustable flow.
The AquaClear 30 sponge fits snugly inside and adds much more surface area than the stock cartridge.
Adding the mini intake filter required a minimal amount of work. The hole in the sponge is slightly larger that the pickup tube on the Finnex filter. This was fixed by heating up a small piece of 5/8 ID tubing in hot water and sliding it over the filter pickup. Now the intake filter fits tightly.
This is the exact same filter as the AZOO Mignon 150. The only difference is that the AZOO comes with a pre-filter sponge to slide over the intake tube. The price is comparable, depending on where you buy it.
I gave the filter 4 stars instead of 5 because I'd purchased two AZOOs elsewhere prior to this Finnex, and one of them died on me within 12 hours of plugging it in. The replacement is running fine, and the filter is quiet. The funny thing is that I'd ordered the Finnex because I wanted to try something different, and it turns out that I'm getting the same filter but without the pre-filter sponge.
I broke a filter and ordered this in a hurry. Order came within a couple days and the product is fantastic. Definitely would recommend for a small tank.