|Fish Type||Marine Fish, Tropical Freshwater||Marine Fish, Tropical Freshwater||—||Marine Fish||Marine Fish|
|Aquarium Type||Saltwater, Freshwater||Saltwater, Freshwater||Freshwater||Saltwater||Saltwater|
I got the Nano 425 for my 55 gallon tank. It works perfect. Strong enough for surface agitation yet gentle enough it doesn't blow my fish all over the tank.
I don't know how I figured 240 gph would be OK in my 20g long, but I did. I had to move it from where I had wanted it as it was so powerful it was sucking in all the bubbles from an air stone 8 inches away. First day I had it on, my fish went nuts in a good way. My corys were scuttling and drifting along their sandbed, my danios were chasing each other through the current, and my littlest tetras took turns darting directly into the jet only to be blasted into the opposing tank wall. I turn it on intermittently, and I can't leave it unattended in good conscience for my tetras sake, but I have it positioned on the back wall next to the outflow of my filter and pointed up at the water surface, and it makes my tank water go in circles. It doesn't stay put at the edges of how far it can be adjusted, but I've had more issues getting the suction cup magnets to detach when I need to move/clean it. I want to buy a powerhead better suited to my tank size but this one is so quiet and Koralia doesn't make anything smaller, so I'm happily resigned with blasting my tetras around now and again.
I ordered this pump for my 30 gallon reef tank it works perfect
No more noisy Aquarium Air Pump and bubbles noise for me.The 240 gph oxygenator is good enough for my 120 gallons tank.
It moves alot of water with out making a sand storm
I put this in my 29 gallon planted tank on the opposite end of my canister filter output to circulate my water.. love it!
I have a small 30 gallon Nano reef tank and needed more surface stimulation so I purchase two hydro pumps with a controller and,..." The get the Job done"