Oase BioCompact 25, Aquarium Filter for Aquariums Up To 25 L

I wanted a low flow filter for my fish tank which is a cubic 30x30x30 (cm). With this filter you can adjust the flow which is perfect for small fish and ideal for my betta fish. You can direct the flow in different directions with the added attachment and the filtration has been perfect for my tank, keeps it nice and clean in between water changes and when re-arranging my live plants. This filter is also very quiet which is perfect as the tank is situated in a bedroom. I would be careful when the handling of the filter, but it’s fine for me i just delicately wash the parts. Overall, impressed with this little filter.

This is a great little filter for a small tank. I have them working in my small 25L tanks. Decent flow and uptake considering how small they are. They first appear small, cheap, and a bit crappy, but give them a chance. The sponges and granules both come out in little cartridges - like a mini Fluval. These filters are very good for their size and price. I've had one going for about 6 months now. Very reliable little things. The only downside is getting the suction cups on it - but maybe that's just a technique I haven't got!

Sponge filter so small needs cleaning every couple of days but it's compact will do the job but I'm looking to change it soon

for this premium brand it is a poor filter!!!! ISSUES- suckers pull off every time you clean it and are awkward to put back in place because they foul against the inner filter trays -filter flow is very poor mainly down to the design of the pull off motor head flow escapes from the rear around the joints - inner tray is flimsy and i can not see the joints lasting long (in my opinion ) a real shame as it is a nice looking compact unit !!!!

My old pump gave up the ghost and I had to buy another one quickly before my fish died, they were struggling to breath and I felt really bad for them. I ended up buying a cheap temporary one while I waited for the Amazon one to arrive. I like my new pump very much, it is much better than my old pump, it is a better size and being grey it blends in very well. It is not noisy and so far seems to be working very well.

Superb little filter, purchased for a quarantine tank. Added the suction cups and placed in a 20Ltr bucket with a 55w heater and some rocks out of established tanks. Then I swapped out the sponges it came with and added some I had from a cycled tank. Poorly fish (recently purchased) now improving rapidly. The adjustable flow on such a small compact filter is outstanding.

I always buy Oase filters they are the quietest by far you can't hear anything, easy to clean, and keeps the water clean and removes any bad smells

I purchased this as the reviews looked good , it’s small , didn’t do the job tank got in a terrible state using this item , and resorted back to my cheap filter ! The suction cups to keep the filter in place didn’t fit into the back of filter .. I wouldn’t recommend this filter to no one !

Achtung für Bestellungen aus Deutschland. Der Filter hatte keinen deutschen Stecker. Somit für mich unbrauchbar. Für mich war bei der Bestellung nicht erkennbar, dass es hier verschiedene Stecker gibt. Sehr ärgerlich!

Lo uso en paralelo con un filtro de cascada para un acuario de 28 litros aproximadamente. Me ayuda mucho a mantener el flujo del co2 en todo el acuario

Attenzione variante destinata al mercato americano 115 volt anziché 220v. Chiesto il reso.

absolutely love this thing, great for anything 5 gallons and under. relatively slower flow but thats ideal when dealing with nano tanks. also extremely sleek and not an eyesore.

I have a 5.5 gallon tank and switched from the Aqueon Quietflow 3 Internal filter and I’m super glad that I upgraded to this one. It has a very small form factor that looks nice and not distracting even in a small tank. It’s basically silent and you can barely hear the faintest hum when holding your ear right next to it. I have it in the lowest setting and the flow is gentle enough where it could work for a betta. Even on the lowest setting, water is circulating well throughout the tank with no dead spots. I’ve seen some reviews on this filter saying that the suction cups pop off when you remove it from the glass which can be annoying. If you slide it off the glass instead of pull, they don’t come off. It’s very easy and straight forward to set up and clean. Oase products are always great quality with thick durable plastic and reliable customer service / warranty. Even though this filter is slightly more expensive than others out there, I think it’s definitely worth the extra 10-15 bucks