UPETTOOLS Aquarium Biochemical Sponge Filter Ultra Quiet Aquarium Air Pump Bio Sponge Fish Tank Foam Filter Comes with 4/2 Sponges 4/2of Bio Ceramic Media Balls

Excellent filter, just make sure to wash really well
It’s a sponge filter with decent quality plastic that seems to be better than most of the other market. (definitely more durable than any of the Lee’s product). Sponge can be removed easily for cleaning, you do not need to disassemble any components to do so. The outlet can also be adjusted so you can have it in or out of water- I usually have out of water for good water circulation. Instead being sitting on the substrate, it attaches to the glass which actually prevent junk build up on the bottom.Even better that it has little room for you to add any of your filter media for extra biochemical filtration power.There are three things that you need to be aware of:-You will need more than 1w air pump for it to work, so if you’re using USB air pumps or other small form, it may not work well. Regular 2.5w air pump, like Tetra whisper will do just fine.-**you MUST wash sponge in hot water before using it** It may or may not hurt the fish, but the sponges that I received had strong chemical smell. I had to wash it in running hot water, in the bucket for good 15 minutes to get rid of the smell.-this sponge filter works by culturing bacteria (that breaks down ammonia from fish’s excrements to safer substances) into the sponge. **IT DOES NOT HAVE THAT BACTERIA OUT OF BOX**, you will need to cycle the tank properly WITH THIS FILTER before using it. If “tank cycling” sounds unfamiliar to you, then please go research that before getting a fish. If you have already added the fish before reading the tank cycling, I’d suggest getting a FritzZyme turbo product, a bottled live bacteria.

Awesome filter! BUT air pump and line required
We bought Alex (the axolotl) a new sponge filter after his regular starter filter broke. I have fish experience but this is our first aquatic amphibian so I wanted to make sure I got him something stronger than a Walmart brand anyways.After reading reviews I picked an air pump line in my order however, I expected there to be some sort of motor in the filter and to my surprise I was very wrong.This filter ONLY includes:plastic filter casing, 4 baggies of media balls, 4 sponges, 2 suction cups.But no instructions (I mean… it’s kind of dummie proof if I can figure it out in under 10min) you WILL need to buy an AIR PUMP and AIR LINE/TUBE.I also read that someone had experienced a chemically smell before a random illness attacked her fish school, due to this I ran everything under extremely hot water and allowed to cool before placing it in my tank. This is probably something you should always do anyways, no matter the filter…We found the spout could be either over or under the waters surface, and the colors really did bring a lot of life to the tank.Overall we are very satisfied- after a week of no filter, and a late night 85% water change, I expected the water to be a foggy grey hue, but this morning it actually looks awesome!Warning-do not put the foam in or on a Sandy surface, I know “why the hell would you do that?” Well, I did but I did smartly and watched it closely for the first three minutes and noticed it did pick up ALOT of sand so I quickly moved it up a bit and as long as it’s not ON the sandy, the sand is heavy enough to stay in place for the most partOne month update:I watched the filter for about 20minutes the other day to figure out what the weird sound was in my fish tank, it didn’t take me long to find that the bottom half of the filter was loose, while many have said there’s fell apart, I was determined to find out why. My seams were leaking air.This filter is built of plastic, ceramic media, and 2 sponges. That’s it.No glue is to be found, and the fittings fit well with notches ingraved, showing me this was an error on my part.After washing the plastic throughly and wiping it down to make sure there was no algae build up, the leaks were all sealed and my tank was once again in clean condition within the hour!I swear by this filter now, our aoxies’ tank looks fabulous and we will more than likely stick with this filter. Updated pictures as well to show my tank one month ago and then again today.

Crystal clear water after just a few days
I was using a similar sponge filter from a different brand before, and the water in my 6 gallon aquarium was always a little cloudy. I decided to try this sponge filter based on the reviews and because I thought the bio balls were kind of interesting. After using it for a few days the water cleared up completely. I’ve heard this filter needs a strong air pump but honestly I just use it with a mini 1.5 watt air pump and it seems to work fine. I’ll update this review if anything changes but so far so good.

It’s awesome
It’s the best sponge filter I’ve ever used. Highly recommend

Well made, Mechanical sponge and biological ceramic filtration. Recommend for use in smaller tanks or large bowls with a few small fish. You need to add an air pump obviously. Clever design.

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