Hydor Movement 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.

Cable is short and on the wrong side of the pump but after a bit of jigging around I got it to work and stopped the vibration by ensuring the outside magnet was lined up properly. However, because the cable is constantly putting strain on the teeny tiny arm of plastic that attaches to the ball that inserts into the mounting sucker (the one in the sales video is completely different to what you get), the arm has got weak and can no longer hold the pump up, meaning its not doing the job its supposed to do. I have had to rig up some stiff copper wire to keep it in place.

I think the pump is excellent, it’s just the right balance between small size and power output. I use this in my heavily planted 240ltr tank, to circulate CO2 and ferts around the tank, for better distribution. It does this beautifully and silently. My one concern would be the protective grill, small fish and shrimps can easily be sucked in. However, this is a fault with most of the devices of this style. I can’t comment on longevity, however thepump was highly recommended and I can see why.

Exactly what I wanted, only down side is they sent out a Nano 900 first.

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.

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.

A little skeptical with this pump due to size and performance and a couple of negative reviews....Thanks Amazon for the very fast delivery....Once in position this small piece of kit helped direct water flow to dead spots in my 6" x 3" x 3" reducing maintenance, you wouldn't know it was there ultra silent no vibration at all suction cup with magnet in center. ; ) absolutely love it,buy the best it's worth every penny.

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