flintronic Submersible Water Pump, 200L/H USB Water Pump for Aquarium, Fish Tank, Statuary and Hydroponics DC 3.5-9V 1-3W(0.4-1.5m) #1 Black/Side Suction Cup

Very good. Was surprised how small the pump was but its cleared the water out of our pool quickly. Bonus is that a standard hose pipe will fit to one of the outlet connectors so perfect for what I needed

Great little pump. Nice and quit, ideal for circulating water. I run mine from a USB power supply and it achieves a decent flow (observation only not actually measured) with a max head of around 0.4m.

Bought two of these to improve the flow and spread of CO2 across the middle of my 288 litre planted aquarium. These pumps are TINY! Which worked out great because they’re not as noticeable.Seem good quality and stick to the glass very well.There’s 5 different flow strengths, the fifth (max) setting is surprisingly strong.The flow adjustment slider is a little bit of a pain because it slips and doesn’t always change the flow to the one you want. But, once you’ve selected and got the flow you want, it’s not really a big deal.They’re also a little noisy, but not to the point of annoyance.Both pumps are still working very well and have done the job I bought them to do.

Exactly what I needed to create my own gravel cleaner! Works perfectly.

I got thus worked for dsy then stopped, had to take it apart loosen the impella then it worked again and has been ok since,doesn't move a great deal of water but it's tiny so didn't expect it too, anyway just right for a shrimp tank as lomg as it doesn't just stop again.

Good for the price

UPDATED REVIEW: DO NOT WASTE YOUR MONEY ON THIS PRODUCT!I originally rated this product 2 star with the below review however after less than a month of use:- the suction cups have zero so too left so I’m having to reposition the pump multiple times a day- the power of the pump (which wasn’t great to start with) is now virtually non existent- despite the loss of function of the pump it’s STILL louder than any previous pump I’ve hadIt’s at the point that I have no choice but to buy a replacement pump - that shouldn’t be the case after less than a month. Once again… do not waste your money on this piece of useless junk!_________________________Original review:I bought this as some of the other reviews mentioned it being an adequate replacement for their pets drinking fountains. I wish I had ignored these reviews and listened to the ones that complained about noise levels! Sure it fit, was easy to install and the suction cups worked well...but everything after installing has been a negative experience!It looks exactly like the the original pump in terms of size, shape etc. so I can’t see why it would have such inadequate performance in comparison BUT it’s barely powerful enough to actually make the fountain function, and it’s so ridiculously and needlessly noisy - I could maybe understand the racket if it was powerful, but it’s really not, I swear I could make a better fountain spurting the water from my own mouth!It gets the job done, kind of (which I why I gave it 2 stars not 1) but for me it’s absolutely not worth the actual headache to have to sit and listen to the damn thing all day.I would not recommend this product.

I love these, most of my tanks run on these tiny, quiet pumps. It takes a few days for them to settle down and become properly silent but I really rate them..not had one fail yet and been using them for several years.