COOSPIDERAquarium Filter Sun JUP-01 for 40-80 Gallon Tank Clear, U-V Fish Tank Green Clean Machine Submersible Pump w/ 1 Spare Bulb + 2 Replace Filter

This is amazing! It totally changed our fish tank from algae growing on the sides to clear water! It functions very well, we thought the design was easy to use. It keeps the tank extremely clean. We've had it a month and so far it's been very durable. Our tank is 150 gallon.

Shipped quickly, arrived quickly. I've had an aquarium for 40 years, and i've lots of experience with high quality tools and electronics. I knew when i unpacked it that this was a quality piece of equipment. You can tell by both the heft of it, the solidness and the way everything fits together. Well designed, well made. I was pleasantly surprised at finding not just the one sponge filter that's installed, but also three extra sponge filters (one is wrapped around the bulb for shipping to prevent "shock damage"; don't throw it away after your remove it). I was simply stunned to find an extra bulb in box with the extra sponges, plus the one that's installed in the unit. I couldn't find the little piece of anti-shock rubber around the bulb which the instructions mentioned. I disassembled as per the easy instructions (it was not wet; no water in it), reassembled with the air bubble hose attached, placed it halfway up the back wall of my 55 gal (it stuck securely with the 4 suction cups), plugged it in and it worked immediately. There is not sound except a tiny hiss of the fine bubbles it makes in its STRONG current. With the aquarium light off, the uv filter is designed so that i can see a small spot of blue uv light so i know that the uv-c bulb is working. I LOVE THIS UV FILTER!Update 1 1/2 Years later STILL GOING STRONG! Crystal clear water, no more 'pea soup' and massive aglae growth! it came with two bulbs, they last a LONG time (i think i might have replaced it once unnecessarily before it died). Don't hesitate to buy this!

I bought a JUB-01 in Jan 2024. Installed it in a 70 gal turtle/fish aquarium on my light timer so it only ran about 10 hours per day. It worked great when it was first installed and cleared up the cloudy water in a couple of days. I recently noticed the water getting cloudy again and saw the light was not blue at the bottom. I pulled the filter and when I opened it up the inner quartz tube around the bulb was totally filled with water. The bulb was corroded and shorted out. I am a Plastics Engineer and started looking at the O ring interface to see if silicone grease or a thicker O ring might help fix the issue. However I noticed that it looks like the factory applied a layer of "glue" inside the molded cylinder where the O ring on the quartz tube is supposed to compress and seal. It might have worked, but was poorly executed. It was not smooth and has ripples in the glue surface so the O ring cannot compress evenly and seal. This was not normal for this type of design and after 20 years of working with Chinese suppliers sourcing plastic parts for major US companies, I am guessing the molding diameter was out of specification. To save a few bucks, rather than scrapping the parts, they tried to rework them using a "glue" wiped inside the plastic cylider to decrease the inner diameter by 0.5mm or so and better compress the O ring. However there are large ripples in the hard glue surface so it is not even and there is no way for it to make a good/even compression of the O ring around the entire circumference. Maybe it was smooth enough to work sometimes, but If you get one of these and see a "glue" build up where the quartz tube/ O ring is supposed to seal I do not recommend using it. Just send it back. Looking at reviews from late 2023 to early 2024 a lot of units reported leaking. I'll bet they all have this "glue" rework inside of them. They need to fix the molding process or modify the molding tool so it has the correct dimensions for the O ring to seal without adding crap to the inner sealing surface as a band-aid.

The media could not be loaded. This video was taken a few hours after setting up the aquarium after a move to a new location. The water was already looking clear but my goldfish were sluggish from not having a filter for a couple days. This filter system almost instantly made them feel high on life! I like it so much more than the traditional filtration that went on the back of the tank. It’s quieter and the fish get all the oxygen they need to feel their best. This is a 55 gallon tank and the product is easy to use, basically unwrap and submerge the entire thing except the air hose. Plug it in and watch your fish party!

Works well but durability is an issue. Lasted less than a year, installed a different lamp after 8 months and then it broke again.

It is working great cleaning my 55 saltwater. It is easier to clean than filters I have had in the past. Very quiet.easy to position in tank.

Love my fish; hate cleaning the tank. Our fish tank seems to need a full water change (and scrub) bi-monthly. I have owned fish for many years. However, I was not able to find a balance with this tank and filter combo, then I added this to my tank...while the tank was at it's worse.I returned from traveling for two weeks and the tanks had both green and brown algae. I was fed up and ready to close the tank and put my fish in my outdoor pond (they can survive). However, I have a similar filter in my outdoor pond and I am so glad this filter cleared the algae up after about two-weeks and it has not returned. To the point, I now have to supplement my algae eaters diet.