HydorMovement Pump Marine Aquariums and Fresh Water KORALIA NANO 1600 l/h, Magnet Suction Cup Support, Max 10 mm Thickness

Great quality circulation/wave pump. Very silent when fitted correctly. I used it to aim slightly at the surface for surface agitation and water movement, also slightly causes swaying movement on plants so makes the tank look more realistic and plants gently sway. Does a great job and does it well, good quality and good brand.Very powerful so ensure it's suitable for your size tank and fish, some fish don't like much water movement and would probably get stressed and worn out if they had to constantly swim in front of it, so make sure there are spots in the tank where fish can go where water ciruclation is calmer, just something to take note of. Highly recommend.

Works as described - better than the cheaper alternatives and does not look unattractive in the tank. A big fan of the magnet-type attachment. Would prefer a longer power cable, please check if reaches your power source before buying.

Easy to fit and breaks up the surface well enough for required aeration. Fitted to 200l tropical tank.Does attract plant debris and when it does it can make a bit more noise but overall is pretty quiet.The addition of the "outside" magnet is genius, it really helps to reduce noise.

Purchased 2 pumps for a 4ft tank. Neat pumps, well made and compact. Good magnetic suction mounting, cuts down noise and vibration. Very quiet in operation with good flow. Good value.

I needed a circulation pump for my 180Ltr Juwel Vision tank. I am going the planted route with heavy water movement and this tiny item fits the bill. Easy to install with the suction cup/magnetic feature. Sadly I have two issues with it....1) The mains cord is rather short - may or may not be an issue for you.2) The pump is noisy! I believe this to be vibration noise but it is annoying as I have my aquarium next to my bed. Moving it around a bit does help alleviate this a little, but the noise is still there. I am going to experiment a bit to see if I can add anything that can dampen the noise (maybe some thin cloth/felt) - will update if this works.The pump is good, the angling options are 'meh' but are not an issue for me as I have pointed it head on to the front of my tank from the back. Flow is definitely there, and it isn't a washing machine effect - so it is a smooth flow. The cord length is a bit too short and the vibration noise is definitely the faults that are not making me super happy. Hopefully my mod with felt will fix this issue.I think 3.5*s is fair considering the bugs I have with it. Maybe in a different setup this wont be much of an issue.

I like that it's small and powerful I hate the fact the cable is too small so It cant fit perfect in certain tanks depends on the distance between the power adapter and the tank , I have a fluval Roma 200 and my power adapter is underneath and it doesnt fit, I've had to prop the power adapter up so it does fit, everyone check their measurements first

I have seen some complaints about the noise of this pump - not sure what people are on about as this has not increased any noise output on my tank. It does exactly as I needed and is easy to set up and use.

The mounting for this is strong and the powerhead is silent when running. The output seems weaker than the equivalent output from a canister filter. I nearly bought the 900 but went for the 1600. The output is nowhere near as strong as my 1200lph filter output. Do go bigger than you think that you need. The cable is laughably short making it hard/impossible to set up a drip loop. Had the cable been a few foot longer, this would have been five stars