ZKSJMini Aquarium Wavemaker USB Power Connector 530GPH (2000L/H) Water Circulation Pump 5W DC 5V With Magnetic DC Power Head For Tanks Up to 14 Inches And 5 10 Gallons (Mini Slim 2000)

It was way to strong for my tank wish I would’ve ordered the smallest one they have now I have to wait until I can order another one

8 month update:This device continues to operate normally until about the 7 month mark. I have regularly cleaned it by taking it apart and ensuring all components were free from buildup. However it began to malfunction. It would attempt to spin up and push water but would quickly flash orange - indicating an error. The pump would then stop spinning for a moment and restart this process. It led to a small wave being pushed randomly every 3-6 seconds. It didn't matter what flow mode or power setting it was adjusted to. I reached out to the seller and they offered to replace the item. The new one appears to have a few updates. The controller has a different printout on it showing what the flow mode colors mean. There is also a textured backing added to the silicone on the powerhead itself - I suspect to help in holding the powerhead on the glass. Other than that. It looks pretty much like the same thing. For the cost of 40 bucks to get 7 months of operation? Not great. Not horrible. It's still the smallest powerhead I'm aware of with this kind of flow....so...can't complain too much! I'd still buy it again.Original:I took a chance on this listing. No reviews and an overseas shipper.I purchased the 570GPH 5W model for 39.99. They gave an estimated arrival date of may 10th to june 10th...but it arrived on the 5th of may, so that's nice.I have only had this for a day but wanted to provide some insight as the listing as pretty poor and lacks much information.The dimensions of 1.6 by 1.6 are accurate, this thing is definitely very small. It is powered by a USB A plug which I prefer as I can run it off a multi USB outlet and save plug space on my strips.It comes with a reasonably written manual, a bunch of stickers (that I don't understand the point of), a velcro strip for the controller, 3 covers for the pump, and a USB power source.The best I can tell it has 3 pump modes. It has constant, pulse, and a slow pulse. You can only adjust the pump's speed and not adjust the pulses' timing or anything like that.I ran it out of the water and it didn't like that, giving me an error state flashing light on the controller. This shows it has some feedback built in.It almost reminds me of the TMC nano flow 1000, but it hasn't been released in the US. The dimensions, power source, and look are the same, so it could be just a rebrand.So far it seems to perform reasonably well. I put it in a tank that's still getting off the ground so I don't have corals to check about its flow. However, It moves a reasonable amount of water in a 15 gallon tank.It's silent while running. The included covers do adjust the flow and allow the flow to spread out a bit.The magnet doesn't seem to have any issue holding the pump through 6mm glass.I have a nero 5 in my other identical tank which is just complete overkill. So I don't really have a good comparison.I would say in the IM 15 AIO tank I would want 2 of them. One towards the front and another on the opposite rear.I included a photo comparing it to the nero 5 in the tanks. The nero can fit at least 4 of them inside it.I'll update this over time.

Absoluter Schrott…sehr laut im Wechsel bei Wave …und nach nicht mal 6 Stunden schon störungsanzeigeFinger weg

I had gotten a hygger mini due to the size and power. But I didn't realize how much power it produced in my 15 gallon tank even when turned down to lowest 40%. Looked around and this peeked my interest. 790GPH and can lower it! Perfect. Just enough flow for the bottom but not enough to blow my sandbed all over.The magnet is a bit on the weakside but holds fine. Its slightly smaller than the hygger mini which is also why I like it.

The unit worked great for not even 5 months. The fan froze solid, and was hot to the touch when I pulled it out of the aquarium.