Flexzion 10 Gallon Fish Tank Filter Submersible 80 GPH 3-in-1 Multi-Function Internal Aquarium Filter Adjustable Flow Rate with Spray Bar and Pipe

Looks and works amazing! Keeps the tank really clear

First of all it is very small and has very limited space for biological/mechanical filtration. So won't work for "high-tech" tanks or tanks with fish that produce a lot of wastes. It is rather a pump than a filter.Flow rate is adjustable as long as you keep activated carbon insert in. When you remove it, flow rate stays "high". But still, flow rate is perfect for my tank so I can't complain.Overall: great for circulating water in "low-tech" or shrimp tank! Would not recommend it for gold fish or turtles.

Three month update-this filter is absolutely worthless and I need to replace it completely. It simply does not clean anything, or work for maintaining a fish tank with live fish in it. Firstly I am not an amateur-I have three fish tanks with multiple species and multiple setups and I test regularly and clean regularly as well as maintain a live plant ecosystem. Since installation of this filter in a 10gal tank, I have had nothing but problems from rapidly changing levels of PH and ammonia, to large amounts of algae buildup. I discovered as stated in my first review that it has no clear instructions and you can switch off the filtration part of this very easily, it never tells you that though. After multiple cleaning's of the filter itself I eventually took apart the whole thing and replaced the pelletized charcoal that came with it with professional aquarium charcoal and it helped slightly, however the design is so poor that it hardly draws any water through the actual filtration part of it (it will suck just straight water through) so I guess that would work if you're using it for a fountain in water that is treated for algae growth ect....the multiple hoses that create a waterfall effect were very nice but I have to give this whole thing up because it simply isn't effective at all. I realize it's like a 10$ filter so I know what I paid for, but don't expect to be able to use it functionality AT ALL. It really is just cheap china garbage. I'm so sick of trying to make it work. Don't waste your life like I have-buy something better10 days in-First let me say it is a very cheap filter and you probably can't find anything priced as low so keeping that in mind it's not too bad, however it is very small. I set it up in a 10 gal aquarium with three small fish inside of it, and it seems to run well however the instructions are very clearly translated poorly into English and leave out several rather important pieces of information-for example the on and off switch also acts as an on and off use of the filter itself. There is a toggle switch, and when you move it left it only takes in water and spits it out, unfiltered. If you toggle it to the right, you engage the actual filter! Again NOWHERE is this mentioned in the instructions. Becase of this over the course of one week my tank became too alkaline and two of my fish died. The filter comes completely disassembled loose in a small cardboard box as well. After figuring all this out by troubleshooting the filter seems to perform ok actually, but I haven't changed the filter yet and there is absolutely no information on how to do that

Nice low profile pump, filter and aerator. Great for increasing aeration when needed. I don't suggest using this as the only filter, just as a supplement. Easy to use.The unit comes apart for maintenance. Upper half has the motor and impeller which can be cleaned when necessary. The impeller housing also comes apart for cleaning. NOTE: I ordered two units and both had loose impeller housing caps. I simply pressed the cap back in place. If yours wont pump and is noisy, unplug it and check the impeller housing cap to make sure it is on tight.I tried the air hose attachment and it worked very well. I didn't like that it made some very tiny bubbles so I switched to the aeration bar and adjusted the aim toward the surface. I might use it in a small tank for sick fish. Also, fishermen might want to use it in their minnow bucket. Works great so far.

Great little filter! It worked amazingly in my 10 gallon axolotl aquarium. Its really quiet which is a necessity for me as the aquarium is in my bed room and if it's to loud it really irritates me, but this thing was dead silent and with the spray bar I was able to direct the current where ever I wanted it to go to prevent there being a current and upsetting my little axolotl.

This product is not the greatest for a betta fish. I use this product with a 5 gallon tank with a betta, three plants, and a half coconut that my betta likes to hide in. The current that the filter produces is too strong for the betta, so it stays off and only runs for an hour one day of the week. That said, the product does clean, and does a decent job (no obvious debris in the water), but I am afraid that keeping it running would stress out my fish. When it is off, my betta loves resting on it, since it is close to the surface and he can easily breathe when he awakens from his nap. Overall, it is a decent product, but be aware that the current is a little strong for bettas.

Works great; full submersible and placeable anywhere in the tank! In a small tank can provide a small current (on top or under the water) and in really small tanks (Mine is 5 gallons or less for a solo Beta) may need to be on lowest setting to make sure the current isn't too strong - but otherwise fabulous and great price!

My old tank filter broke, so I purchased this filter. The price was really reasonable, and the filter works better than the original one on my tank - if you need a fish tank filter for up to 40 gallons, buy this one in the size you need.