BioPlus 50 Compact Internal Filter for Clean & Clear Aquarium Water – Easy Maintenance, Discreet Corner Mount, for Freshwater Tanks up to 15 Gallons

Saw this at my newest aquarium store. Liked the way it sprays. Name speaks for itself. They use this in their tank for Mudskippers. I have 4 myself and will be building them a new enclosure.

Read below to see my original experience which I now realize was more a result of incomplete instructions rather than insufficient design. I did not realize that the entire filter assembly is held to the motor unit by magnets and that if you grasp it by the slots on the side of just the filter housing it pops off easily and is thus easily disassembled and cleaned. I do not think this is clear in the instructions but it is in fact how it works. Thus I take back my negative comments and whole heartedly endorse this filter. PS: I substituted the larger foam filter with a filter bag of charcoal which seems to work better. Sorry about the confusion... This filter is a pain to clean! 20 gallon tank w/ three small gold fish. Expect to clean filter on water change, about every two weeks, but don't expect it to be easy. You must first pry the filter away from the glass with a tool (butter knife) otherwise the suction cups holding it in place pop off then good luck getting it apart to wash the filters. I am a strong man with woodcutter's hands and I had to curse up a storm to get the cover to release. Dirty water, filter crud and mess got all over the counter. It's just a poorly designed latch system that definitely cannot be operated the way it is shown in the elementary brochure. The filter has good flow options but don't try to clean it in polite company!

Great for water flow and agitating the surface of the water with the adjustable dial at the top. When cleaning there is a good amount of bio product that escapes back into the water when the filter is pulled from the housing but, gets sucked back up soon enough with the replaced/cleaned filter.

If you are tired of having to take out and dismantling your submersible filters, I do highly recommend changing to this model, it has made my life so easy and also my fishes seem way less stressed any time I do maintenance, you just need to detach the magnets oh so easily. The filtering material is great quality too and does floss the water perfectly. I also like that you can regulate the flow and that you can hide the heater behind, it seems like the temperature has been more stable since I placed it there. I like that it doesn't generate so much vibration and noise, maybe because it is more stable with 4 suctions cups in the corner and the chasis isn't in direct contact with anything. Just remember to avoid it if your tanks has neocaridina and the like, they will get sucked by it.

It's really quiet, easy to clean, works great. I just wish you could direct the water down and around like others. That doesn't take away from this being the best small corner filter I own.

The reason I am returning this after trying it is because water tends to take the path of least resistance; and the way this filter is designed it enters the sponge chamber above the sponge and also exits the same chamber above the sponge as it travels up to the impeller. This pretty much shows that this filter has quite a bit of bypass and due to that it won't filter as well as it could have if the water entered the sponge chamber from the bottom. However, this filter does have an adjustable flow rate by means of adjusting the method it outputs the water either by a spray bar like effect, or a single high flow output, or a combination of both. I initially bought this for a planted 10 gallon due to the more uniform flow and the low influence on water evaporation it has, compared to using a hang on back unit, but I will likely be going back to using an Aqua Clear 20 or getting a canister filter.

I’ve wasted a lot of money buying filters. This one I’ve had for about one year & it still works great. I can add sponge filters to replace the ones it comes with, u can also add bio balls. I don’t recall paying $61.00 . I’d buy it again

I have had this product for 3-4 months in a 10 gallon and this is where I'm at with it. If you purchase the model without the heater (which this is) then it leaves just a large opening and if my filter is under water level my fish could be sucked in. I didn't know this until I literally had to save him from getting sucked into it. My fish would have died if I wasn't luckily watching at that exact moment. The pressure is EXTREMELY high and there is NO gauge. just a twist knob in between fire hose and golf course sprinklers. it says its gph is 120 but it is so powerful it is absurd. This could easily run on a 20 gallon tank. Also this filter is a shrimp trap. Didn't come with the suction cups either. If you're going to get it please the only reason i'm writing this is so that you BUY THE HEATER AS WELL. Seems Oase leaves all their ingenuity for larger equipment.

Parfait j'aime vraiment ce petit filtreur il est parfait dans le coins de mon aquarium et avec les plantes on le voit pas pentoute

Ça a fonctionné que 3 min après plus rien déçus de mon achat