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.

I have not had to change/clean the water the past 3 weeks I have been using it. Glass is crystal clear and rocks and assories are clean!

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!

I'm using this as a filter/pump for a small 375 gallon float pool. I've never used one of these before, so I was hoping there would be complete instructions, but the paper that came with it was quite lacking in any useful information. More warnings than anything. So you have to figure it out on your own. Somewhat easy to do, however, I still had questions... At first there were no air bubbles, and the filter end kept floating to the top of the water causing it to suck air through the filter... I had to take the plate off the back of it that holds the suction cups, because the edges were sharp and I didn't want it to tear the bottom of my pool, so the one suction cup did not stick and I was relying on the weight of it to stay down at the bottom... I finally figured out I had to physically hold it down on the bottom until all of the air bubbles came out of it, then plug it in, facing it with one jet facing up and one facing forward into the pool in order to make it stay at the bottom. Now I'm getting the air bubbles. It really moves the water well... So it's nice and powerful. I've been using it for 2 weeks now, pretty much non-stop, so it's doing it's job well, and there isn't any water getting into the UV lamp. The air hose is entirely too short for my use, so I had to buy a longer one. There is no hose supplied to use it as a pump to pump water out of the pool, although the description says it can be used to pump water out, So I'm going to have to rig something up to use it for that application.**In short, it's powerful, aerates well, easy to clean, but lacking in instructions. IMO it should have a longer air hose and a hose for extraction pumping. It would also be nice if the power cords were a little longer.

This works great! I purchased two — one for each of my fish tanks.